102131301221220 has 96 divisors (see below), whose sum is σ = 286148534112000. Its totient is φ = 27217791500800.

The previous prime is 102131301221171. The next prime is 102131301221263. The reversal of 102131301221220 is 22122103131201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 614052070 + ... + 614218370.

It is an arithmetic number, because the mean of its divisors is an integer number (2980713897000).

Almost surely, 2^{102131301221220} is an apocalyptic number.

102131301221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102131301221220 is an abundant number, since it is smaller than the sum of its proper divisors (184017232890780).

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

102131301221220 is a wasteful number, since it uses less digits than its factorization.

102131301221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172725 (or 172723 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 102131301221220 its reverse (22122103131201), we get a palindrome (124253404352421).

The spelling of 102131301221220 in words is "one hundred two trillion, one hundred thirty-one billion, three hundred one million, two hundred twenty-one thousand, two hundred twenty".