22231253432551 has 4 divisors (see below), whose sum is σ = 22231262949112. Its totient is φ = 22231243915992.

The previous prime is 22231253432537. The next prime is 22231253432561. The reversal of 22231253432551 is 15523435213222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22231253432551 - 2⁵ = 22231253432519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231253432501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418701 + ... + 6817273.

It is an arithmetic number, because the mean of its divisors is an integer number (5557815737278).

Almost surely, 2^{22231253432551} is an apocalyptic number.

22231253432551 is a deficient number, since it is larger than the sum of its proper divisors (9516561).

22231253432551 is an equidigital number, since it uses as much as digits as its factorization.

22231253432551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9516560.

The product of its digits is 432000, while the sum is 40.

Adding to 22231253432551 its reverse (15523435213222), we get a palindrome (37754688645773).

The spelling of 22231253432551 in words is "twenty-two trillion, two hundred thirty-one billion, two hundred fifty-three million, four hundred thirty-two thousand, five hundred fifty-one".