22255215231 has 8 divisors (see below), whose sum is σ = 29675337264. Its totient is φ = 14835951680.

The previous prime is 22255215221. The next prime is 22255215233. The reversal of 22255215231 is 13251255222.

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

It is a cyclic number.

It is not a de Polignac number, because 22255215231 - 2¹⁸ = 22254953087 is a prime.

It is a super-2 number, since 2×22255215231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22255215233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151476 + ... + 259721.

It is an arithmetic number, because the mean of its divisors is an integer number (3709417158).

Almost surely, 2^22255215231 is an apocalyptic number.

22255215231 is a deficient number, since it is larger than the sum of its proper divisors (7420122033).

22255215231 is a wasteful number, since it uses less digits than its factorization.

22255215231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429241.

The product of its digits is 12000, while the sum is 30.

The spelling of 22255215231 in words is "twenty-two billion, two hundred fifty-five million, two hundred fifteen thousand, two hundred thirty-one".