22101310031231 has 16 divisors (see below), whose sum is σ = 24526306963200. Its totient is φ = 19821260245248.

The previous prime is 22101310031221. The next prime is 22101310031279. The reversal of 22101310031231 is 13213001310122.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22101310031231 is a prime.

It is a super-2 number, since 2×22101310031231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101310031201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260653901 + ... + 260738678.

It is an arithmetic number, because the mean of its divisors is an integer number (1532894185200).

Almost surely, 2^{22101310031231} is an apocalyptic number.

22101310031231 is a deficient number, since it is larger than the sum of its proper divisors (2424996931969).

22101310031231 is a wasteful number, since it uses less digits than its factorization.

22101310031231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521392718.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 22101310031231 its reverse (13213001310122), we get a palindrome (35314311341353).

The spelling of 22101310031231 in words is "twenty-two trillion, one hundred one billion, three hundred ten million, thirty-one thousand, two hundred thirty-one".