22031022131 has 4 divisors (see below), whose sum is σ = 22032674664. Its totient is φ = 22029369600.

The previous prime is 22031022107. The next prime is 22031022217. The reversal of 22031022131 is 13122013022.

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 22031022131 - 2⁶ = 22031022067 is a prime.

It is a super-2 number, since 2×22031022131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22031024131) 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, 806105 + ... + 832986.

It is an arithmetic number, because the mean of its divisors is an integer number (5508168666).

Almost surely, 2^22031022131 is an apocalyptic number.

22031022131 is a deficient number, since it is larger than the sum of its proper divisors (1652533).

22031022131 is a wasteful number, since it uses less digits than its factorization.

22031022131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652532.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22031022131 its reverse (13122013022), we get a palindrome (35153035153).

The spelling of 22031022131 in words is "twenty-two billion, thirty-one million, twenty-two thousand, one hundred thirty-one".