12212751107820 has 48 divisors (see below), whose sum is σ = 34199864038368. Its totient is φ = 3256337349120.

The previous prime is 12212751107819. The next prime is 12212751107831. The reversal of 12212751107820 is 2870115721221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11886369 + ... + 12872888.

It is an arithmetic number, because the mean of its divisors is an integer number (712497167466).

Almost surely, 2^{12212751107820} is an apocalyptic number.

12212751107820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212751107820 is an abundant number, since it is smaller than the sum of its proper divisors (21987112930548).

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

12212751107820 is a wasteful number, since it uses less digits than its factorization.

12212751107820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24767490 (or 24767488 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 39.

The spelling of 12212751107820 in words is "twelve trillion, two hundred twelve billion, seven hundred fifty-one million, one hundred seven thousand, eight hundred twenty".