12400218552700 has 36 divisors (see below), whose sum is σ = 29354699194632. Its totient is φ = 4509170382400.

The previous prime is 12400218552671. The next prime is 12400218552703. The reversal of 12400218552700 is 725581200421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12400218552700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12400218552703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5636461879 + ... + 5636464078.

It is an arithmetic number, because the mean of its divisors is an integer number (815408310962).

Almost surely, 2^{12400218552700} is an apocalyptic number.

12400218552700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12400218552700 is an abundant number, since it is smaller than the sum of its proper divisors (16954480641932).

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

12400218552700 is a wasteful number, since it uses less digits than its factorization.

12400218552700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11272925982 (or 11272925975 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The spelling of 12400218552700 in words is "twelve trillion, four hundred billion, two hundred eighteen million, five hundred fifty-two thousand, seven hundred".