2100220131 has 16 divisors (see below), whose sum is σ = 2865905280. Its totient is φ = 1367720640.

The previous prime is 2100220099. The next prime is 2100220139. The reversal of 2100220131 is 1310220012.

It is not a de Polignac number, because 2100220131 - 2⁵ = 2100220099 is a prime.

It is a super-2 number, since 2×2100220131² = 8821849197315314322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2100220139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25225 + ... + 69546.

It is an arithmetic number, because the mean of its divisors is an integer number (179119080).

Almost surely, 2^2100220131 is an apocalyptic number.

2100220131 is a deficient number, since it is larger than the sum of its proper divisors (765685149).

2100220131 is an equidigital number, since it uses as much as digits as its factorization.

2100220131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94946.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2100220131 is about 45828.1587127390. The cubic root of 2100220131 is about 1280.6239086895.

Adding to 2100220131 its reverse (1310220012), we get a palindrome (3410440143).

The spelling of 2100220131 in words is "two billion, one hundred million, two hundred twenty thousand, one hundred thirty-one".