12222564811 has 4 divisors (see below), whose sum is σ = 12369824712. Its totient is φ = 12075304912.

The previous prime is 12222564791. The next prime is 12222564833. The reversal of 12222564811 is 11846522221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12222564811 - 2¹⁵ = 12222532043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222564841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73629826 + ... + 73629991.

It is an arithmetic number, because the mean of its divisors is an integer number (3092456178).

Almost surely, 2^12222564811 is an apocalyptic number.

12222564811 is a deficient number, since it is larger than the sum of its proper divisors (147259901).

12222564811 is an equidigital number, since it uses as much as digits as its factorization.

12222564811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147259900.

The product of its digits is 15360, while the sum is 34.

The spelling of 12222564811 in words is "twelve billion, two hundred twenty-two million, five hundred sixty-four thousand, eight hundred eleven".