22215541553123 has 4 divisors (see below), whose sum is σ = 22217956557600. Its totient is φ = 22213126548648.

The previous prime is 22215541553113. The next prime is 22215541553141. The reversal of 22215541553123 is 32135514551222.

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

It is a cyclic number.

It is not a de Polignac number, because 22215541553123 - 2⁶ = 22215541553059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22215541553113) 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, 1207488440 + ... + 1207506837.

It is an arithmetic number, because the mean of its divisors is an integer number (5554489139400).

Almost surely, 2^{22215541553123} is an apocalyptic number.

22215541553123 is a deficient number, since it is larger than the sum of its proper divisors (2415004477).

22215541553123 is an equidigital number, since it uses as much as digits as its factorization.

22215541553123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415004476.

The product of its digits is 360000, while the sum is 41.

The spelling of 22215541553123 in words is "twenty-two trillion, two hundred fifteen billion, five hundred forty-one million, five hundred fifty-three thousand, one hundred twenty-three".