22052055217 has 4 divisors (see below), whose sum is σ = 22362647616. Its totient is φ = 21741462820.

The previous prime is 22052055211. The next prime is 22052055229. The reversal of 22052055217 is 71255025022.

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 22052055217 - 2³ = 22052055209 is a prime.

It is a super-3 number, since 3×22052055217³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22052055211) 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, 155296093 + ... + 155296234.

It is an arithmetic number, because the mean of its divisors is an integer number (5590661904).

Almost surely, 2^22052055217 is an apocalyptic number.

It is an amenable number.

22052055217 is a deficient number, since it is larger than the sum of its proper divisors (310592399).

22052055217 is an equidigital number, since it uses as much as digits as its factorization.

22052055217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310592398.

The product of its (nonzero) digits is 14000, while the sum is 31.

The spelling of 22052055217 in words is "twenty-two billion, fifty-two million, fifty-five thousand, two hundred seventeen".