12216057775 has 18 divisors (see below), whose sum is σ = 15233753400. Its totient is φ = 9717531120.

The previous prime is 12216057769. The next prime is 12216057839. The reversal of 12216057775 is 57775061221.

It is not a de Polignac number, because 12216057775 - 2⁹ = 12216057263 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 17 ways as a sum of consecutive naturals, for example, 7795042 + ... + 7796608.

Almost surely, 2^12216057775 is an apocalyptic number.

12216057775 is a deficient number, since it is larger than the sum of its proper divisors (3017695625).

12216057775 is an frugal number, since it uses more digits than its factorization.

12216057775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343 (or 1771 counting only the distinct ones).

The product of its (nonzero) digits is 205800, while the sum is 43.

The spelling of 12216057775 in words is "twelve billion, two hundred sixteen million, fifty-seven thousand, seven hundred seventy-five".