22152772043231 has 4 divisors (see below), whose sum is σ = 22321877173464. Its totient is φ = 21983666913000.

The previous prime is 22152772043197. The next prime is 22152772043249. The reversal of 22152772043231 is 13234027725122.

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 22152772043231 - 2³⁰ = 22151698301407 is a prime.

It is a super-2 number, since 2×22152772043231² (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 (22152772043431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84552564920 + ... + 84552565181.

It is an arithmetic number, because the mean of its divisors is an integer number (5580469293366).

Almost surely, 2^{22152772043231} is an apocalyptic number.

22152772043231 is a deficient number, since it is larger than the sum of its proper divisors (169105130233).

22152772043231 is a wasteful number, since it uses less digits than its factorization.

22152772043231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169105130232.

The product of its (nonzero) digits is 282240, while the sum is 41.

Adding to 22152772043231 its reverse (13234027725122), we get a palindrome (35386799768353).

The spelling of 22152772043231 in words is "twenty-two trillion, one hundred fifty-two billion, seven hundred seventy-two million, forty-three thousand, two hundred thirty-one".