2137324221 has 12 divisors (see below), whose sum is σ = 3091366720. Its totient is φ = 1422981000.

The previous prime is 2137324207. The next prime is 2137324247. The reversal of 2137324221 is 1224237312.

It is not a de Polignac number, because 2137324221 - 2²⁷ = 2003106493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137320221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151351 + ... + 164868.

Almost surely, 2^2137324221 is an apocalyptic number.

It is an amenable number.

2137324221 is a deficient number, since it is larger than the sum of its proper divisors (954042499).

2137324221 is a wasteful number, since it uses less digits than its factorization.

2137324221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316976 (or 316973 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 2137324221 is about 46231.2039752373. The cubic root of 2137324221 is about 1288.1214210227.

The spelling of 2137324221 in words is "two billion, one hundred thirty-seven million, three hundred twenty-four thousand, two hundred twenty-one".