10102010121 has 16 divisors (see below), whose sum is σ = 17103932800. Its totient is φ = 5772577104.

The previous prime is 10102010119. The next prime is 10102010179. The reversal of 10102010121 is 12101020101.

It is a happy number.

It is not a de Polignac number, because 10102010121 - 2¹ = 10102010119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10102010921) 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, 26724706 + ... + 26725083.

It is an arithmetic number, because the mean of its divisors is an integer number (1068995800).

Almost surely, 2^10102010121 is an apocalyptic number.

It is an amenable number.

10102010121 is a deficient number, since it is larger than the sum of its proper divisors (7001922679).

10102010121 is an equidigital number, since it uses as much as digits as its factorization.

10102010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53449805 (or 53449799 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10102010121 its reverse (12101020101), we get a palindrome (22203030222).

The spelling of 10102010121 in words is "ten billion, one hundred two million, ten thousand, one hundred twenty-one".