121110120036 has 72 divisors (see below), whose sum is σ = 341208110880. Its totient is φ = 35995574016.

The previous prime is 121110120007. The next prime is 121110120049. The reversal of 121110120036 is 630021011121.

It is a super-2 number, since 2×121110120036² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5196066 + ... + 5219321.

It is an arithmetic number, because the mean of its divisors is an integer number (4739001540).

Almost surely, 2^121110120036 is an apocalyptic number.

It is an amenable number.

121110120036 is an abundant number, since it is smaller than the sum of its proper divisors (220097990844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121110120036 is a wasteful number, since it uses less digits than its factorization.

121110120036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10415433 (or 10415428 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 121110120036 its reverse (630021011121), we get a palindrome (751131131157).

The spelling of 121110120036 in words is "one hundred twenty-one billion, one hundred ten million, one hundred twenty thousand, thirty-six".