12223139 has 2 divisors, whose sum is σ = 12223140. Its totient is φ = 12223138.

The previous prime is 12223109. The next prime is 12223199. The reversal of 12223139 is 93132221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12223139 is a prime.

It is equal to p₈₀₁₇₁₆ and since 12223139 and 801716 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12223109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111569 + 6111570.

It is an arithmetic number, because the mean of its divisors is an integer number (6111570).

Almost surely, 2^12223139 is an apocalyptic number.

12223139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223139 is an equidigital number, since it uses as much as digits as its factorization.

12223139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

The square root of 12223139 is about 3496.1606084389. The cubic root of 12223139 is about 230.3532002404.

The spelling of 12223139 in words is "twelve million, two hundred twenty-three thousand, one hundred thirty-nine".