222120330131 has 4 divisors (see below), whose sum is σ = 253851805872. Its totient is φ = 190388854392.

The previous prime is 222120330127. The next prime is 222120330151. The reversal of 222120330131 is 131033021222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222120330131 - 2² = 222120330127 is a prime.

It is a super-2 number, since 2×222120330131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222120330151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15865737860 + ... + 15865737873.

It is an arithmetic number, because the mean of its divisors is an integer number (63462951468).

Almost surely, 2^222120330131 is an apocalyptic number.

222120330131 is a deficient number, since it is larger than the sum of its proper divisors (31731475741).

222120330131 is an equidigital number, since it uses as much as digits as its factorization.

222120330131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31731475740.

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

Adding to 222120330131 its reverse (131033021222), we get a palindrome (353153351353).

The spelling of 222120330131 in words is "two hundred twenty-two billion, one hundred twenty million, three hundred thirty thousand, one hundred thirty-one".