102252612402 has 24 divisors (see below), whose sum is σ = 221707806060. Its totient is φ = 34059515040.

The previous prime is 102252612391. The next prime is 102252612419. The reversal of 102252612402 is 204216252201.

102252612402 is a `hidden beast` number, since 1 + 0 + 2 + 2 + 5 + 2 + 612 + 40 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 100889452161 + 1363160241 = 317631^2 + 36921^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2031877 + ... + 2081592.

Almost surely, 2^102252612402 is an apocalyptic number.

102252612402 is an abundant number, since it is smaller than the sum of its proper divisors (119455193658).

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

102252612402 is a wasteful number, since it uses less digits than its factorization.

102252612402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4114858 (or 4114855 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 102252612402 its reverse (204216252201), we get a palindrome (306468864603).

The spelling of 102252612402 in words is "one hundred two billion, two hundred fifty-two million, six hundred twelve thousand, four hundred two".