102251104512 has 72 divisors (see below), whose sum is σ = 276749669280. Its totient is φ = 33505996800.

The previous prime is 102251104507. The next prime is 102251104513. The reversal of 102251104512 is 215401152201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (102251104513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1082989 + ... + 1173612.

Almost surely, 2^102251104512 is an apocalyptic number.

102251104512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102251104512 is an abundant number, since it is smaller than the sum of its proper divisors (174498564768).

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

102251104512 is an equidigital number, since it uses as much as digits as its factorization.

102251104512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256679 (or 2256665 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 102251104512 its reverse (215401152201), we get a palindrome (317652256713).

The spelling of 102251104512 in words is "one hundred two billion, two hundred fifty-one million, one hundred four thousand, five hundred twelve".