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120202101220 = 225191312724097
BaseRepresentation
bin110111111110010011…
…0101000000111100100
3102111021002110102020211
41233330212220013210
53432133214214340
6131115312105204
711453502000535
oct1577446500744
9374232412224
10120202101220
1146a82a52823
121b367535204
13b448028ba6
145b6411468c
1531d7ac75ea
hex1bfc9a81e4

120202101220 has 48 divisors (see below), whose sum is σ = 265741176960. Its totient is φ = 45544909824.

The previous prime is 120202101193. The next prime is 120202101251. The reversal of 120202101220 is 22101202021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 120202101220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4976212 + ... + 5000308.

It is an arithmetic number, because the mean of its divisors is an integer number (5536274520).

Almost surely, 2120202101220 is an apocalyptic number.

120202101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120202101220 is an abundant number, since it is smaller than the sum of its proper divisors (145539075740).

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

120202101220 is a wasteful number, since it uses less digits than its factorization.

120202101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37252 (or 37250 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 120202101220 its reverse (22101202021), we get a palindrome (142303303241).

The spelling of 120202101220 in words is "one hundred twenty billion, two hundred two million, one hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 13127 24097 26254 48194 52508 65635 96388 120485 131270 240970 249413 262540 457843 481940 498826 915686 997652 1247065 1831372 2289215 2494130 4578430 4988260 9156860 316321319 632642638 1265285276 1581606595 3163213190 6010105061 6326426380 12020210122 24040420244 30050525305 60101050610 120202101220