122311938 has 96 divisors (see below), whose sum is σ = 297622080. Its totient is φ = 33384960.

The previous prime is 122311933. The next prime is 122311939. The reversal of 122311938 is 839113221.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122311933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 879873 + ... + 880011.

It is an arithmetic number, because the mean of its divisors is an integer number (3100230).

Almost surely, 2^122311938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122311938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148811040).

122311938 is an abundant number, since it is smaller than the sum of its proper divisors (175310142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122311938 is a wasteful number, since it uses less digits than its factorization.

122311938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 265 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 122311938 is about 11059.4727722437. The cubic root of 122311938 is about 496.3899146329.

The spelling of 122311938 in words is "one hundred twenty-two million, three hundred eleven thousand, nine hundred thirty-eight".