2121110122120 has 96 divisors (see below), whose sum is σ = 5309006794560. Its totient is φ = 762019702400.

The previous prime is 2121110122069. The next prime is 2121110122147. The reversal of 2121110122120 is 212210111212.

It is a junction number, because it is equal to n+sod(n) for n = 2121110122094 and 2121110122103.

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, 2238316 + ... + 3041755.

It is an arithmetic number, because the mean of its divisors is an integer number (55302154110).

Almost surely, 2^{2121110122120} is an apocalyptic number.

2121110122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121110122120 is an abundant number, since it is smaller than the sum of its proper divisors (3187896672440).

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

2121110122120 is a wasteful number, since it uses less digits than its factorization.

2121110122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280187 (or 5280172 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2121110122120 its reverse (212210111212), we get a palindrome (2333320233332).

The spelling of 2121110122120 in words is "two trillion, one hundred twenty-one billion, one hundred ten million, one hundred twenty-two thousand, one hundred twenty".