222122022131 has 4 divisors (see below), whose sum is σ = 222314670312. Its totient is φ = 221929373952.

The previous prime is 222122022127. The next prime is 222122022139. The reversal of 222122022131 is 131220221222.

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 222122022131 - 2² = 222122022127 is a prime.

It is a super-2 number, since 2×222122022131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222122022139) 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, 96322361 + ... + 96324666.

It is an arithmetic number, because the mean of its divisors is an integer number (55578667578).

Almost surely, 2^222122022131 is an apocalyptic number.

222122022131 is a deficient number, since it is larger than the sum of its proper divisors (192648181).

222122022131 is a wasteful number, since it uses less digits than its factorization.

222122022131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192648180.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 222122022131 its reverse (131220221222), we get a palindrome (353342243353).

The spelling of 222122022131 in words is "two hundred twenty-two billion, one hundred twenty-two million, twenty-two thousand, one hundred thirty-one".