122765761212 has 12 divisors (see below), whose sum is σ = 286453442856. Its totient is φ = 40921920400.

The previous prime is 122765761189. The next prime is 122765761213. The reversal of 122765761212 is 212167567221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122765761213) 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, 5115240039 + ... + 5115240062.

It is an arithmetic number, because the mean of its divisors is an integer number (23871120238).

Almost surely, 2^122765761212 is an apocalyptic number.

122765761212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122765761212 is an abundant number, since it is smaller than the sum of its proper divisors (163687681644).

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

122765761212 is a wasteful number, since it uses less digits than its factorization.

122765761212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10230480108 (or 10230480106 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The spelling of 122765761212 in words is "one hundred twenty-two billion, seven hundred sixty-five million, seven hundred sixty-one thousand, two hundred twelve".