2220961924 has 12 divisors (see below), whose sum is σ = 3895918348. Its totient is φ = 1107842400.

The previous prime is 2220961921. The next prime is 2220961931. The reversal of 2220961924 is 4291690222.

It can be written as a sum of positive squares in 2 ways, for example, as 64288324 + 2156673600 = 8018^2 + 46440^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2220961921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657747 + ... + 661114.

Almost surely, 2^2220961924 is an apocalyptic number.

It is an amenable number.

2220961924 is a deficient number, since it is larger than the sum of its proper divisors (1674956424).

2220961924 is a wasteful number, since it uses less digits than its factorization.

2220961924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319286 (or 1319284 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 2220961924 is about 47127.0827019878. The cubic root of 2220961924 is about 1304.7091387021.

The spelling of 2220961924 in words is "two billion, two hundred twenty million, nine hundred sixty-one thousand, nine hundred twenty-four".