2222222131 has 12 divisors (see below), whose sum is σ = 2280392400. Its totient is φ = 2165343840.

The previous prime is 2222222129. The next prime is 2222222137. The reversal of 2222222131 is 1312222222.

It is not a de Polignac number, because 2222222131 - 2¹ = 2222222129 is a prime.

It is a super-2 number, since 2×2222222131² = 9876542399012362322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2222222099 and 2222222108.

It is not an unprimeable number, because it can be changed into a prime (2222222137) 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, 402850 + ... + 408328.

It is an arithmetic number, because the mean of its divisors is an integer number (190032700).

Almost surely, 2^2222222131 is an apocalyptic number.

2222222131 is a deficient number, since it is larger than the sum of its proper divisors (58170269).

2222222131 is an equidigital number, since it uses as much as digits as its factorization.

2222222131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5710 (or 5649 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 2222222131 is about 47140.4511115454. The cubic root of 2222222131 is about 1304.9558625335.

Adding to 2222222131 its reverse (1312222222), we get a palindrome (3534444353).

Subtracting from 2222222131 its reverse (1312222222), we obtain a palindrome (909999909).

The spelling of 2222222131 in words is "two billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred thirty-one".