122111057 has 2 divisors, whose sum is σ = 122111058. Its totient is φ = 122111056.

The previous prime is 122111039. The next prime is 122111089. The reversal of 122111057 is 750111221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71757841 + 50353216 = 8471^2 + 7096^2 .

It is a cyclic number.

It is not a de Polignac number, because 122111057 - 2¹² = 122106961 is a prime.

It is a super-2 number, since 2×122111057² = 29822220483314498, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122111027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61055528 + 61055529.

It is an arithmetic number, because the mean of its divisors is an integer number (61055529).

Almost surely, 2^122111057 is an apocalyptic number.

It is an amenable number.

122111057 is a deficient number, since it is larger than the sum of its proper divisors (1).

122111057 is an equidigital number, since it uses as much as digits as its factorization.

122111057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 122111057 is about 11050.3871877867. The cubic root of 122111057 is about 496.1180143763.

Adding to 122111057 its reverse (750111221), we get a palindrome (872222278).

The spelling of 122111057 in words is "one hundred twenty-two million, one hundred eleven thousand, fifty-seven".