22553134421 has 4 divisors (see below), whose sum is σ = 22554945600. Its totient is φ = 22551323244.

The previous prime is 22553134397. The next prime is 22553134433. The reversal of 22553134421 is 12443135522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22553134421 - 2¹⁰ = 22553133397 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 (22553134441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 886781 + ... + 911858.

It is an arithmetic number, because the mean of its divisors is an integer number (5638736400).

Almost surely, 2^22553134421 is an apocalyptic number.

It is an amenable number.

22553134421 is a deficient number, since it is larger than the sum of its proper divisors (1811179).

22553134421 is a wasteful number, since it uses less digits than its factorization.

22553134421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811178.

The product of its digits is 28800, while the sum is 32.

Adding to 22553134421 its reverse (12443135522), we get a palindrome (34996269943).

It can be divided in two parts, 225531 and 34421, that added together give a palindrome (259952).

The spelling of 22553134421 in words is "twenty-two billion, five hundred fifty-three million, one hundred thirty-four thousand, four hundred twenty-one".