22505055544231 has 4 divisors (see below), whose sum is σ = 24236213663032. Its totient is φ = 20773897425432.

The previous prime is 22505055544211. The next prime is 22505055544247. The reversal of 22505055544231 is 13244555050522.

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 22505055544231 - 2⁵ = 22505055544199 is a prime.

It is a super-2 number, since 2×22505055544231² (a number of 28 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 (22505055544211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865579059381 + ... + 865579059406.

It is an arithmetic number, because the mean of its divisors is an integer number (6059053415758).

Almost surely, 2^{22505055544231} is an apocalyptic number.

22505055544231 is a deficient number, since it is larger than the sum of its proper divisors (1731158118801).

22505055544231 is a wasteful number, since it uses less digits than its factorization.

22505055544231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731158118800.

The product of its (nonzero) digits is 1200000, while the sum is 43.

The spelling of 22505055544231 in words is "twenty-two trillion, five hundred five billion, fifty-five million, five hundred forty-four thousand, two hundred thirty-one".