122326817809812 has 144 divisors (see below), whose sum is σ = 372004054607808. Its totient is φ = 30914464250880.

The previous prime is 122326817809799. The next prime is 122326817809873. The reversal of 122326817809812 is 218908718623221.

It is a happy number.

It is a super-3 number, since 3×122326817809812³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 255336613 + ... + 255815244.

It is an arithmetic number, because the mean of its divisors is an integer number (2583361490332).

Almost surely, 2^{122326817809812} is an apocalyptic number.

122326817809812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122326817809812 is an abundant number, since it is smaller than the sum of its proper divisors (249677236797996).

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

122326817809812 is a wasteful number, since it uses less digits than its factorization.

122326817809812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511151926 (or 511151917 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 60.

The spelling of 122326817809812 in words is "one hundred twenty-two trillion, three hundred twenty-six billion, eight hundred seventeen million, eight hundred nine thousand, eight hundred twelve".