122013109 has 2 divisors, whose sum is σ = 122013110. Its totient is φ = 122013108.

The previous prime is 122013077. The next prime is 122013113. The reversal of 122013109 is 901310221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119968209 + 2044900 = 10953^2 + 1430^2 .

It is a cyclic number.

It is not a de Polignac number, because 122013109 - 2⁵ = 122013077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122013119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61006554 + 61006555.

It is an arithmetic number, because the mean of its divisors is an integer number (61006555).

Almost surely, 2^122013109 is an apocalyptic number.

It is an amenable number.

122013109 is a deficient number, since it is larger than the sum of its proper divisors (1).

122013109 is an equidigital number, since it uses as much as digits as its factorization.

122013109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 122013109 is about 11045.9544177948. The cubic root of 122013109 is about 495.9853297885.

The spelling of 122013109 in words is "one hundred twenty-two million, thirteen thousand, one hundred nine".