22042115231 has 8 divisors (see below), whose sum is σ = 22837669680. Its totient is φ = 21248926272.

The previous prime is 22042115209. The next prime is 22042115237. The reversal of 22042115231 is 13251124022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22042115231 is a prime.

It is a super-2 number, since 2×22042115231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22042115197 and 22042115206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22042115237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572390 + ... + 609683.

It is an arithmetic number, because the mean of its divisors is an integer number (2854708710).

Almost surely, 2^22042115231 is an apocalyptic number.

22042115231 is a deficient number, since it is larger than the sum of its proper divisors (795554449).

22042115231 is a wasteful number, since it uses less digits than its factorization.

22042115231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182745.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 22042115231 its reverse (13251124022), we get a palindrome (35293239253).

The spelling of 22042115231 in words is "twenty-two billion, forty-two million, one hundred fifteen thousand, two hundred thirty-one".