102010120121 has 16 divisors (see below), whose sum is σ = 129880262400. Its totient is φ = 77928153408.

The previous prime is 102010120109. The next prime is 102010120141. The reversal of 102010120121 is 121021010201.

It is not a de Polignac number, because 102010120121 - 2⁶ = 102010120057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102010120141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19324781 + ... + 19330058.

It is an arithmetic number, because the mean of its divisors is an integer number (8117516400).

Almost surely, 2^102010120121 is an apocalyptic number.

It is an amenable number.

102010120121 is a deficient number, since it is larger than the sum of its proper divisors (27870142279).

102010120121 is a wasteful number, since it uses less digits than its factorization.

102010120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38654888.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102010120121 its reverse (121021010201), we get a palindrome (223031130322).

The spelling of 102010120121 in words is "one hundred two billion, ten million, one hundred twenty thousand, one hundred twenty-one".