122371920 has 120 divisors (see below), whose sum is σ = 448355232. Its totient is φ = 29664000.

The previous prime is 122371889. The next prime is 122371927. The reversal of 122371920 is 29173221.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122371927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195 + ... + 15645.

Almost surely, 2^122371920 is an apocalyptic number.

122371920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122371920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224177616).

122371920 is an abundant number, since it is smaller than the sum of its proper divisors (325983312).

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

122371920 is a wasteful number, since it uses less digits than its factorization.

122371920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15481 (or 15472 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 122371920 is about 11062.1842327815. The cubic root of 122371920 is about 496.4710448821.

The spelling of 122371920 in words is "one hundred twenty-two million, three hundred seventy-one thousand, nine hundred twenty".