122642326320 has 160 divisors (see below), whose sum is σ = 400696377600. Its totient is φ = 30944996352.

The previous prime is 122642326307. The next prime is 122642326327. The reversal of 122642326320 is 23623246221.

It is a super-2 number, since 2×122642326320² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122642326327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3764019 + ... + 3796461.

It is an arithmetic number, because the mean of its divisors is an integer number (2504352360).

Almost surely, 2^122642326320 is an apocalyptic number.

122642326320 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 122642326320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200348188800).

122642326320 is an abundant number, since it is smaller than the sum of its proper divisors (278054051280).

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

122642326320 is a wasteful number, since it uses less digits than its factorization.

122642326320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33307 (or 33301 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

The spelling of 122642326320 in words is "one hundred twenty-two billion, six hundred forty-two million, three hundred twenty-six thousand, three hundred twenty".