2120018972 has 12 divisors (see below), whose sum is σ = 3730531896. Its totient is φ = 1054152720.

The previous prime is 2120018963. The next prime is 2120019029. The reversal of 2120018972 is 2798100212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1463378 + ... + 1464825.

It is an arithmetic number, because the mean of its divisors is an integer number (310877658).

Almost surely, 2^2120018972 is an apocalyptic number.

It is an amenable number.

2120018972 is a deficient number, since it is larger than the sum of its proper divisors (1610512924).

2120018972 is a wasteful number, since it uses less digits than its factorization.

2120018972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2928388 (or 2928386 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 2120018972 is about 46043.6637551792. The cubic root of 2120018972 is about 1284.6354897815.

The spelling of 2120018972 in words is "two billion, one hundred twenty million, eighteen thousand, nine hundred seventy-two".