2021122130 has 8 divisors (see below), whose sum is σ = 3638019852. Its totient is φ = 808448848.

The previous prime is 2021122121. The next prime is 2021122141. The reversal of 2021122130 is 312211202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1942781929 + 78340201 = 44077^2 + 8851^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 101056097 + ... + 101056116.

Almost surely, 2^2021122130 is an apocalyptic number.

2021122130 is a deficient number, since it is larger than the sum of its proper divisors (1616897722).

2021122130 is a wasteful number, since it uses less digits than its factorization.

2021122130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202112220.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2021122130 is about 44956.8919076931. The cubic root of 2021122130 is about 1264.3408961595.

Adding to 2021122130 its reverse (312211202), we get a palindrome (2333333332).

The spelling of 2021122130 in words is "two billion, twenty-one million, one hundred twenty-two thousand, one hundred thirty".