22400223551 has 4 divisors (see below), whose sum is σ = 22576603392. Its totient is φ = 22223843712.

The previous prime is 22400223511. The next prime is 22400223557. The reversal of 22400223551 is 15532200422.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22400223551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22400223551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22400223557) 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, 88189730 + ... + 88189983.

It is an arithmetic number, because the mean of its divisors is an integer number (5644150848).

Almost surely, 2^22400223551 is an apocalyptic number.

22400223551 is a deficient number, since it is larger than the sum of its proper divisors (176379841).

22400223551 is a wasteful number, since it uses less digits than its factorization.

22400223551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176379840.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 22400223551 its reverse (15532200422), we get a palindrome (37932423973).

The spelling of 22400223551 in words is "twenty-two billion, four hundred million, two hundred twenty-three thousand, five hundred fifty-one".