121010010121 has 32 divisors (see below), whose sum is σ = 162997825536. Its totient is φ = 86760072000.

The previous prime is 121010010109. The next prime is 121010010161.

121010010121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 121010010121 - 2⁵ = 121010010089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121010010098 and 121010010107.

It is not an unprimeable number, because it can be changed into a prime (121010010161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116956 + ... + 505666.

It is an arithmetic number, because the mean of its divisors is an integer number (5093682048).

Almost surely, 2^121010010121 is an apocalyptic number.

121010010121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121010010121 is a deficient number, since it is larger than the sum of its proper divisors (41987815415).

121010010121 is a wasteful number, since it uses less digits than its factorization.

121010010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389053.

The product of its (nonzero) digits is 4, while the sum is 10.

It can be divided in two parts, 1210100 and 10121, that added together give a palindrome (1220221).

The spelling of 121010010121 in words is "one hundred twenty-one billion, ten million, ten thousand, one hundred twenty-one".