2021112211974 has 64 divisors (see below), whose sum is σ = 4327732281600. Its totient is φ = 627335290368.

The previous prime is 2021112211973. The next prime is 2021112211981. The reversal of 2021112211974 is 4791122111202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021112211973) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55787514 + ... + 55823730.

It is an arithmetic number, because the mean of its divisors is an integer number (67620816900).

Almost surely, 2^{2021112211974} is an apocalyptic number.

2021112211974 is an abundant number, since it is smaller than the sum of its proper divisors (2306620069626).

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

2021112211974 is a wasteful number, since it uses less digits than its factorization.

2021112211974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44597.

The product of its (nonzero) digits is 4032, while the sum is 33.

The spelling of 2021112211974 in words is "two trillion, twenty-one billion, one hundred twelve million, two hundred eleven thousand, nine hundred seventy-four".