122020057 has 4 divisors (see below), whose sum is σ = 122080720. Its totient is φ = 121959396.

The previous prime is 122020051. The next prime is 122020079. The reversal of 122020057 is 750020221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 750020221 = 173 ⋅4335377.

It is a cyclic number.

It is not a de Polignac number, because 122020057 - 2¹⁵ = 121987289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122020051) 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, 27207 + ... + 31372.

It is an arithmetic number, because the mean of its divisors is an integer number (30520180).

Almost surely, 2^122020057 is an apocalyptic number.

It is an amenable number.

122020057 is a deficient number, since it is larger than the sum of its proper divisors (60663).

122020057 is an equidigital number, since it uses as much as digits as its factorization.

122020057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60662.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 122020057 is about 11046.2689176029. The cubic root of 122020057 is about 495.9947441886.

Adding to 122020057 its reverse (750020221), we get a palindrome (872040278).

The spelling of 122020057 in words is "one hundred twenty-two million, twenty thousand, fifty-seven".