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2220012220020 = 2235731170507851
BaseRepresentation
bin100000010011100011000…
…010100010111001110100
321212020020110122122102120
4200103203002202321310
5242333041112020040
64415505354235540
7316250654342610
oct40234302427164
97766213578376
102220012220020
117865580280a1
122ba305725bb0
1313146694934a
1479640718340
153cb332d37d0
hex204e30a2e74

2220012220020 has 96 divisors (see below), whose sum is σ = 7333201698816. Its totient is φ = 491062608000.

The previous prime is 2220012220001. The next prime is 2220012220021. The reversal of 2220012220020 is 200222100222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220012220021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85240906 + ... + 85266945.

It is an arithmetic number, because the mean of its divisors is an integer number (76387517696).

Almost surely, 22220012220020 is an apocalyptic number.

2220012220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220012220020 is an abundant number, since it is smaller than the sum of its proper divisors (5113189478796).

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

2220012220020 is a wasteful number, since it uses less digits than its factorization.

2220012220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170507901 (or 170507899 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 2220012220020 its reverse (200222100222), we get a palindrome (2420234320242).

The spelling of 2220012220020 in words is "two trillion, two hundred twenty billion, twelve million, two hundred twenty thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 31 35 42 60 62 70 84 93 105 124 140 155 186 210 217 310 372 420 434 465 620 651 868 930 1085 1302 1860 2170 2604 3255 4340 6510 13020 170507851 341015702 511523553 682031404 852539255 1023047106 1193554957 1705078510 2046094212 2387109914 2557617765 3410157020 3580664871 4774219828 5115235530 5285743381 5967774785 7161329742 10230471060 10571486762 11935549570 14322659484 15857230143 17903324355 21142973524 23871099140 26428716905 31714460286 35806648710 37000203667 52857433810 63428920572 71613297420 74000407334 79286150715 105714867620 111000611001 148000814668 158572301430 185001018335 222001222002 317144602860 370002036670 444002444004 555003055005 740004073340 1110006110010 2220012220020