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120200222220020 = 22517978214439269
BaseRepresentation
bin11011010101001001001011…
…100011000001111011110100
3120202121000210011012122222222
4123111021023203001323310
5111223330023342020040
61103351115245541512
734214115363032015
oct3325111343017364
9522530704178888
10120200222220020
113533269a914618
1211593737274898
13520baa87b2b87
142197a1687900c
15dd6a3c372bb5
hex6d524b8c1ef4

120200222220020 has 96 divisors (see below), whose sum is σ = 270353034594720. Its totient is φ = 44730774650880.

The previous prime is 120200222219989. The next prime is 120200222220041. The reversal of 120200222220020 is 20022222002021.

It can be written as a sum of positive squares in 16 ways, for example, as 53270904910864 + 66929317309156 = 7298692^2 + 8181034^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24856946 + ... + 29296214.

It is an arithmetic number, because the mean of its divisors is an integer number (2816177443695).

Almost surely, 2120200222220020 is an apocalyptic number.

120200222220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120200222220020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135176517297360).

120200222220020 is an abundant number, since it is smaller than the sum of its proper divisors (150152812374700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120200222220020 is a wasteful number, since it uses less digits than its factorization.

120200222220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4440213 (or 4440211 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 120200222220020 its reverse (20022222002021), we get a palindrome (140222444222041).

The spelling of 120200222220020 in words is "one hundred twenty trillion, two hundred billion, two hundred twenty-two million, two hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 97 170 194 340 388 485 821 970 1642 1649 1940 3284 3298 4105 6596 8210 8245 13957 16420 16490 27914 32980 55828 69785 79637 139570 159274 279140 318548 398185 796370 1353829 1592740 2707658 4439269 5415316 6769145 8878538 13538290 17757076 22196345 27076580 44392690 75467573 88785380 150935146 301870292 377337865 430609093 754675730 861218186 1509351460 1722436372 2153045465 3644639849 4306090930 7289279698 7320354581 8612181860 14578559396 14640709162 18223199245 29281418324 36446398490 36601772905 61958877433 72892796980 73203545810 123917754866 146407091620 247835509732 309794387165 353530065353 619588774330 707060130706 1239177548660 1414120261412 1767650326765 3535300653530 6010011111001 7070601307060 12020022222002 24040044444004 30050055555005 60100111110010 120200222220020