12212164799 has 4 divisors (see below), whose sum is σ = 12633273960. Its totient is φ = 11791055640.

The previous prime is 12212164787. The next prime is 12212164837. The reversal of 12212164799 is 99746121221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99746121221 = 167 ⋅597282163.

It is a cyclic number.

It is not a de Polignac number, because 12212164799 - 2¹² = 12212160703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212164729) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 210554537 + ... + 210554594.

It is an arithmetic number, because the mean of its divisors is an integer number (3158318490).

Almost surely, 2^12212164799 is an apocalyptic number.

12212164799 is a deficient number, since it is larger than the sum of its proper divisors (421109161).

12212164799 is an equidigital number, since it uses as much as digits as its factorization.

12212164799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421109160.

The product of its digits is 108864, while the sum is 44.

The spelling of 12212164799 in words is "twelve billion, two hundred twelve million, one hundred sixty-four thousand, seven hundred ninety-nine".