211022120972 has 24 divisors (see below), whose sum is σ = 397890780000. Its totient is φ = 97347010176.

The previous prime is 211022120971. The next prime is 211022121043. The reversal of 211022120972 is 279021220112.

It is not an unprimeable number, because it can be changed into a prime (211022120971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 889097 + ... + 1101152.

It is an arithmetic number, because the mean of its divisors is an integer number (16578782500).

Almost surely, 2^211022120972 is an apocalyptic number.

It is an amenable number.

211022120972 is a deficient number, since it is larger than the sum of its proper divisors (186868659028).

211022120972 is a wasteful number, since it uses less digits than its factorization.

211022120972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992305 (or 1992303 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 211022120972 in words is "two hundred eleven billion, twenty-two million, one hundred twenty thousand, nine hundred seventy-two".