2222131313 has 6 divisors (see below), whose sum is σ = 2255797026. Its totient is φ = 2188960752.

The previous prime is 2222131309. The next prime is 2222131333. The reversal of 2222131313 is 3131312222.

It can be written as a sum of positive squares in only one way, i.e., 1117765489 + 1104365824 = 33433^2 + 33232^2 .

It is not a de Polignac number, because 2222131313 - 2² = 2222131309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2222131333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 243020 + ... + 251997.

It is an arithmetic number, because the mean of its divisors is an integer number (375966171).

Almost surely, 2^2222131313 is an apocalyptic number.

It is an amenable number.

2222131313 is a deficient number, since it is larger than the sum of its proper divisors (33665713).

2222131313 is an frugal number, since it uses more digits than its factorization.

2222131313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495151 (or 495084 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 2222131313 is about 47139.4878313288. The cubic root of 2222131313 is about 1304.9380852683.

Adding to 2222131313 its reverse (3131312222), we get a palindrome (5353443535).

The spelling of 2222131313 in words is "two billion, two hundred twenty-two million, one hundred thirty-one thousand, three hundred thirteen".