70122055021557 has 32 divisors (see below), whose sum is σ = 116567157986304. Its totient is φ = 36426846268800.

The previous prime is 70122055021553. The next prime is 70122055021663. The reversal of 70122055021557 is 75512055022107.

It is not a de Polignac number, because 70122055021557 - 2² = 70122055021553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70122055021553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48933513 + ... + 50346129.

It is an arithmetic number, because the mean of its divisors is an integer number (3642723687072).

Almost surely, 2^{70122055021557} is an apocalyptic number.

70122055021557 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

70122055021557 is a deficient number, since it is larger than the sum of its proper divisors (46445102964747).

70122055021557 is a wasteful number, since it uses less digits than its factorization.

70122055021557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627529.

The product of its (nonzero) digits is 245000, while the sum is 42.

It can be divided in two parts, 701220550 and 21557, that added together give a palindrome (701242107).

The spelling of 70122055021557 in words is "seventy trillion, one hundred twenty-two billion, fifty-five million, twenty-one thousand, five hundred fifty-seven".