122399361 has 24 divisors (see below), whose sum is σ = 204622080. Its totient is φ = 69054336.

The previous prime is 122399359. The next prime is 122399383. The reversal of 122399361 is 163993221.

It is a happy number.

It is not a de Polignac number, because 122399361 - 2¹ = 122399359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122399161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7320 + ... + 17273.

It is an arithmetic number, because the mean of its divisors is an integer number (8525920).

Almost surely, 2^122399361 is an apocalyptic number.

It is an amenable number.

122399361 is a deficient number, since it is larger than the sum of its proper divisors (82222719).

122399361 is a wasteful number, since it uses less digits than its factorization.

122399361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24685 (or 24682 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 122399361 is about 11063.4244698466. The cubic root of 122399361 is about 496.5081520979.

It can be divided in two parts, 122399 and 361, that added together give a triangular number (122760 = T₄₉₅).

The spelling of 122399361 in words is "one hundred twenty-two million, three hundred ninety-nine thousand, three hundred sixty-one".