12213265391 has 2 divisors, whose sum is σ = 12213265392. Its totient is φ = 12213265390.

The previous prime is 12213265301. The next prime is 12213265403. The reversal of 12213265391 is 19356231221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12213265391 - 2²⁶ = 12146156527 is a prime.

It is a super-3 number, since 3×12213265391³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12213265301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106632695 + 6106632696.

It is an arithmetic number, because the mean of its divisors is an integer number (6106632696).

Almost surely, 2^12213265391 is an apocalyptic number.

12213265391 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213265391 is an equidigital number, since it uses as much as digits as its factorization.

12213265391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 35.

The spelling of 12213265391 in words is "twelve billion, two hundred thirteen million, two hundred sixty-five thousand, three hundred ninety-one".