122113109 has 2 divisors, whose sum is σ = 122113110. Its totient is φ = 122113108.

The previous prime is 122113093. The next prime is 122113139. The reversal of 122113109 is 901311221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122102500 + 10609 = 11050^2 + 103^2 .

It is a cyclic number.

It is not a de Polignac number, because 122113109 - 2⁴ = 122113093 is a prime.

It is a super-2 number, since 2×122113109² = 29823222779291762, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122113139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61056554 + 61056555.

It is an arithmetic number, because the mean of its divisors is an integer number (61056555).

Almost surely, 2^122113109 is an apocalyptic number.

It is an amenable number.

122113109 is a deficient number, since it is larger than the sum of its proper divisors (1).

122113109 is an equidigital number, since it uses as much as digits as its factorization.

122113109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 122113109 is about 11050.4800348220. The cubic root of 122113109 is about 496.1207933451.

The spelling of 122113109 in words is "one hundred twenty-two million, one hundred thirteen thousand, one hundred nine".