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120102002220 = 2235173727111743
BaseRepresentation
bin110111111011010100…
…0110001111000101100
3102111000010002212020110
41233312220301320230
53431432103032340
6131101334420020
711451145113654
oct1576650617054
9374003085213
10120102002220
1146a314a3982
121b339b01610
13b43037c305
145b54ad9364
1531cde03680
hex1bf6a31e2c

120102002220 has 192 divisors, whose sum is σ = 367071215616. Its totient is φ = 29217853440.

The previous prime is 120102002161. The next prime is 120102002243. The reversal of 120102002220 is 22200201021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 120102002196 and 120102002205.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10221669 + ... + 10233411.

It is an arithmetic number, because the mean of its divisors is an integer number (1911829248).

Almost surely, 2120102002220 is an apocalyptic number.

120102002220 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 120102002220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183535607808).

120102002220 is an abundant number, since it is smaller than the sum of its proper divisors (246969213396).

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

120102002220 is a wasteful number, since it uses less digits than its factorization.

120102002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12080 (or 12078 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 120102002220 its reverse (22200201021), we get a palindrome (142302203241).

The spelling of 120102002220 in words is "one hundred twenty billion, one hundred two million, two thousand, two hundred twenty".