122426521236 has 36 divisors (see below), whose sum is σ = 309482910100. Its totient is φ = 40806747648.

The previous prime is 122426521187. The next prime is 122426521289. The reversal of 122426521236 is 632125624221.

122426521236 is a `hidden beast` number, since 12 + 2 + 426 + 5 + 212 + 3 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 67527219600 + 54899301636 = 259860^2 + 234306^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 122426521236.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 729270 + ... + 881298.

Almost surely, 2^122426521236 is an apocalyptic number.

It is an amenable number.

122426521236 is an abundant number, since it is smaller than the sum of its proper divisors (187056388864).

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

122426521236 is a wasteful number, since it uses less digits than its factorization.

122426521236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174408 (or 174403 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The spelling of 122426521236 in words is "one hundred twenty-two billion, four hundred twenty-six million, five hundred twenty-one thousand, two hundred thirty-six".