122677021752 has 64 divisors (see below), whose sum is σ = 309447475200. Its totient is φ = 40526616960.

The previous prime is 122677021739. The next prime is 122677021763. The reversal of 122677021752 is 257120776221.

It is a happy number.

It is a super-2 number, since 2×122677021752² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1183353 + ... + 1282839.

It is an arithmetic number, because the mean of its divisors is an integer number (4835116800).

Almost surely, 2^122677021752 is an apocalyptic number.

122677021752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122677021752 is an abundant number, since it is smaller than the sum of its proper divisors (186770453448).

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

122677021752 is a wasteful number, since it uses less digits than its factorization.

122677021752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99956 (or 99952 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

Adding to 122677021752 its reverse (257120776221), we get a palindrome (379797797973).

The spelling of 122677021752 in words is "one hundred twenty-two billion, six hundred seventy-seven million, twenty-one thousand, seven hundred fifty-two".