22251131330223 has 4 divisors (see below), whose sum is σ = 29668175106968. Its totient is φ = 14834087553480.

The previous prime is 22251131330147. The next prime is 22251131330227. The reversal of 22251131330223 is 32203313115222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22251131330223 - 2⁹ = 22251131329711 is a prime.

It is a super-2 number, since 2×22251131330223² (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 (22251131330227) 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, 3708521888368 + ... + 3708521888373.

It is an arithmetic number, because the mean of its divisors is an integer number (7417043776742).

Almost surely, 2^{22251131330223} is an apocalyptic number.

22251131330223 is a deficient number, since it is larger than the sum of its proper divisors (7417043776745).

22251131330223 is an equidigital number, since it uses as much as digits as its factorization.

22251131330223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7417043776744.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 22251131330223 its reverse (32203313115222), we get a palindrome (54454444445445).

The spelling of 22251131330223 in words is "twenty-two trillion, two hundred fifty-one billion, one hundred thirty-one million, three hundred thirty thousand, two hundred twenty-three".