622221439057 has 4 divisors (see below), whose sum is σ = 658822700196. Its totient is φ = 585620177920.

The previous prime is 622221439027. The next prime is 622221439139. The reversal of 622221439057 is 750934122226.

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 497611733056 + 124609706001 = 705416^2 + 353001^2 .

It is a de Polignac number, because none of the positive numbers 2^k-622221439057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622221439027) 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, 18300630544 + ... + 18300630577.

It is an arithmetic number, because the mean of its divisors is an integer number (164705675049).

Almost surely, 2^622221439057 is an apocalyptic number.

It is an amenable number.

622221439057 is a deficient number, since it is larger than the sum of its proper divisors (36601261139).

622221439057 is a wasteful number, since it uses less digits than its factorization.

622221439057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36601261138.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 622221439057 in words is "six hundred twenty-two billion, two hundred twenty-one million, four hundred thirty-nine thousand, fifty-seven".