22253412135421 has 4 divisors (see below), whose sum is σ = 22258198849500. Its totient is φ = 22248625421344.

The previous prime is 22253412135413. The next prime is 22253412135467. The reversal of 22253412135421 is 12453121435222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19742648292900 + 2510763842521 = 4443270^2 + 1584539^2 .

It is a cyclic number.

It is not a de Polignac number, because 22253412135421 - 2³ = 22253412135413 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 (22253412135491) 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, 2393350066 + ... + 2393359363.

It is an arithmetic number, because the mean of its divisors is an integer number (5564549712375).

Almost surely, 2^{22253412135421} is an apocalyptic number.

It is an amenable number.

22253412135421 is a deficient number, since it is larger than the sum of its proper divisors (4786714079).

22253412135421 is an equidigital number, since it uses as much as digits as its factorization.

22253412135421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786714078.

The product of its digits is 115200, while the sum is 37.

The spelling of 22253412135421 in words is "twenty-two trillion, two hundred fifty-three billion, four hundred twelve million, one hundred thirty-five thousand, four hundred twenty-one".