122712373620 has 144 divisors (see below), whose sum is σ = 392153711040. Its totient is φ = 30974496768.

The previous prime is 122712373613. The next prime is 122712373841. The reversal of 122712373620 is 26373217221.

122712373620 is a `hidden beast` number, since 1 + 2 + 2 + 7 + 1 + 23 + 7 + 3 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4147399 + ... + 4176881.

It is an arithmetic number, because the mean of its divisors is an integer number (2723289660).

Almost surely, 2^122712373620 is an apocalyptic number.

122712373620 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 122712373620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196076855520).

122712373620 is an abundant number, since it is smaller than the sum of its proper divisors (269441337420).

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

122712373620 is a wasteful number, since it uses less digits than its factorization.

122712373620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30734 (or 30729 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 122712373620 in words is "one hundred twenty-two billion, seven hundred twelve million, three hundred seventy-three thousand, six hundred twenty".