2022171880 has 16 divisors (see below), whose sum is σ = 4549886820. Its totient is φ = 808868736.

The previous prime is 2022171863. The next prime is 2022171929. The reversal of 2022171880 is 881712202.

It can be written as a sum of positive squares in 2 ways, for example, as 2012599044 + 9572836 = 44862^2 + 3094^2 .

It is a super-2 number, since 2×2022171880² = 8178358224525468800, which contains 22 as substring.

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, 25277109 + ... + 25277188.

Almost surely, 2^2022171880 is an apocalyptic number.

2022171880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2022171880 is an abundant number, since it is smaller than the sum of its proper divisors (2527714940).

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

2022171880 is a wasteful number, since it uses less digits than its factorization.

2022171880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50554308 (or 50554304 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 2022171880 is about 44968.5654652225. The cubic root of 2022171880 is about 1264.5597534825.

The spelling of 2022171880 in words is "two billion, twenty-two million, one hundred seventy-one thousand, eight hundred eighty".