122661922512 has 20 divisors (see below), whose sum is σ = 316876633280. Its totient is φ = 40887307488.

The previous prime is 122661922511. The next prime is 122661922517. The reversal of 122661922512 is 215229166221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122661922511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277728312 + ... + 1277728407.

It is an arithmetic number, because the mean of its divisors is an integer number (15843831664).

Almost surely, 2^122661922512 is an apocalyptic number.

122661922512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122661922512 is an abundant number, since it is smaller than the sum of its proper divisors (194214710768).

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

122661922512 is a wasteful number, since it uses less digits than its factorization.

122661922512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555456730 (or 2555456724 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The spelling of 122661922512 in words is "one hundred twenty-two billion, six hundred sixty-one million, nine hundred twenty-two thousand, five hundred twelve".