122644972032 has 320 divisors, whose sum is σ = 381408445440. Its totient is φ = 34626355200.

The previous prime is 122644971991. The next prime is 122644972039. The reversal of 122644972032 is 230279446221.

It is not an unprimeable number, because it can be changed into a prime (122644972039) 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, 19579333 + ... + 19585595.

It is an arithmetic number, because the mean of its divisors is an integer number (1191901392).

Almost surely, 2^122644972032 is an apocalyptic number.

122644972032 is a gapful number since it is divisible by the number (12) 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 122644972032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190704222720).

122644972032 is an abundant number, since it is smaller than the sum of its proper divisors (258763473408).

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

122644972032 is a wasteful number, since it uses less digits than its factorization.

122644972032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6375 (or 6359 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 122644972032 in words is "one hundred twenty-two billion, six hundred forty-four million, nine hundred seventy-two thousand, thirty-two".