2121323022120 has 32 divisors (see below), whose sum is σ = 6363969066720. Its totient is φ = 565686139200.

The previous prime is 2121323022107. The next prime is 2121323022127. The reversal of 2121323022120 is 212203231212.

It is a super-2 number, since 2×2121323022120² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2121323022127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8838845806 + ... + 8838846045.

It is an arithmetic number, because the mean of its divisors is an integer number (198874033335).

Almost surely, 2^{2121323022120} is an apocalyptic number.

2121323022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121323022120 is an abundant number, since it is smaller than the sum of its proper divisors (4242646044600).

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

2121323022120 is a wasteful number, since it uses less digits than its factorization.

2121323022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17677691865 (or 17677691861 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2121323022120 its reverse (212203231212), we get a palindrome (2333526253332).

The spelling of 2121323022120 in words is "two trillion, one hundred twenty-one billion, three hundred twenty-three million, twenty-two thousand, one hundred twenty".