2213221131 has 32 divisors (see below), whose sum is σ = 3595549440. Its totient is φ = 1334361600.

The previous prime is 2213221097. The next prime is 2213221133. The reversal of 2213221131 is 1311223122.

It is not a de Polignac number, because 2213221131 - 2⁶ = 2213221067 is a prime.

It is a super-2 number, since 2×2213221131² = 9796695549409838322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2213221133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38016 + ... + 76626.

It is an arithmetic number, because the mean of its divisors is an integer number (112360920).

Almost surely, 2^2213221131 is an apocalyptic number.

2213221131 is a deficient number, since it is larger than the sum of its proper divisors (1382328309).

2213221131 is a wasteful number, since it uses less digits than its factorization.

2213221131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38824 (or 38818 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2213221131 is about 47044.8842170963. The cubic root of 2213221131 is about 1303.1915921251.

Adding to 2213221131 its reverse (1311223122), we get a palindrome (3524444253).

The spelling of 2213221131 in words is "two billion, two hundred thirteen million, two hundred twenty-one thousand, one hundred thirty-one".