121021211012110 has 32 divisors (see below), whose sum is σ = 229651303939200. Its totient is φ = 45791078084640.

The previous prime is 121021211012099. The next prime is 121021211012159. The reversal of 121021211012110 is 11210112120121.

It is a super-2 number, since 2×121021211012110² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483147736 + ... + 483398155.

It is an arithmetic number, because the mean of its divisors is an integer number (7176603248100).

Almost surely, 2^{121021211012110} is an apocalyptic number.

121021211012110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121021211012110 is a deficient number, since it is larger than the sum of its proper divisors (108630092927090).

121021211012110 is a wasteful number, since it uses less digits than its factorization.

121021211012110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966546576.

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

Adding to 121021211012110 its reverse (11210112120121), we get a palindrome (132231323132231).

The spelling of 121021211012110 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred eleven million, twelve thousand, one hundred ten".