102121022122 has 64 divisors (see below), whose sum is σ = 185067417600. Its totient is φ = 41285661120.

The previous prime is 102121022111. The next prime is 102121022147. The reversal of 102121022122 is 221220121201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102121022096 and 102121022105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98287279 + ... + 98288317.

It is an arithmetic number, because the mean of its divisors is an integer number (2891678400).

Almost surely, 2^102121022122 is an apocalyptic number.

102121022122 is a deficient number, since it is larger than the sum of its proper divisors (82946395478).

102121022122 is a wasteful number, since it uses less digits than its factorization.

102121022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102121022122 its reverse (221220121201), we get a palindrome (323341143323).

The spelling of 102121022122 in words is "one hundred two billion, one hundred twenty-one million, twenty-two thousand, one hundred twenty-two".