121010111122 has 4 divisors (see below), whose sum is σ = 181515166686. Its totient is φ = 60505055560.

The previous prime is 121010111083. The next prime is 121010111141. The reversal of 121010111122 is 221111010121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221111010121 = 46703 ⋅4734407.

It can be written as a sum of positive squares in only one way, i.e., 86818033201 + 34192077921 = 294649^2 + 184911^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30252527779 + ... + 30252527782.

Almost surely, 2^121010111122 is an apocalyptic number.

121010111122 is a deficient number, since it is larger than the sum of its proper divisors (60505055564).

121010111122 is an equidigital number, since it uses as much as digits as its factorization.

121010111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60505055563.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121010111122 its reverse (221111010121), we get a palindrome (342121121243).

The spelling of 121010111122 in words is "one hundred twenty-one billion, ten million, one hundred eleven thousand, one hundred twenty-two".