102121001221122 has 64 divisors (see below), whose sum is σ = 244461319724160. Its totient is φ = 31412951952192.

The previous prime is 102121001221111. The next prime is 102121001221139. The reversal of 102121001221122 is 221122100121201.

102121001221122 is a `hidden beast` number, since 10 + 212 + 100 + 1 + 221 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102121001221095 and 102121001221104.

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, 18107368 + ... + 23067699.

It is an arithmetic number, because the mean of its divisors is an integer number (3819708120690).

Almost surely, 2^{102121001221122} is an apocalyptic number.

102121001221122 is an abundant number, since it is smaller than the sum of its proper divisors (142340318503038).

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

102121001221122 is a wasteful number, since it uses less digits than its factorization.

102121001221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41178624 (or 41178618 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102121001221122 its reverse (221122100121201), we get a palindrome (323243101342323).

The spelling of 102121001221122 in words is "one hundred two trillion, one hundred twenty-one billion, one million, two hundred twenty-one thousand, one hundred twenty-two".