12223212187 has 2 divisors, whose sum is σ = 12223212188. Its totient is φ = 12223212186.

The previous prime is 12223212167. The next prime is 12223212217. The reversal of 12223212187 is 78121232221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12223212187 - 2³¹ = 10075728539 is a prime.

It is not a weakly prime, because it can be changed into another prime (12223212167) by changing a digit.

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 as a sum of consecutive naturals, namely, 6111606093 + 6111606094.

It is an arithmetic number, because the mean of its divisors is an integer number (6111606094).

Almost surely, 2^12223212187 is an apocalyptic number.

12223212187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223212187 is an equidigital number, since it uses as much as digits as its factorization.

12223212187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 31.

The spelling of 12223212187 in words is "twelve billion, two hundred twenty-three million, two hundred twelve thousand, one hundred eighty-seven".