12219561931223 has 2 divisors, whose sum is σ = 12219561931224. Its totient is φ = 12219561931222.

The previous prime is 12219561931117. The next prime is 12219561931261. The reversal of 12219561931223 is 32213916591221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12219561931223 - 2⁸ = 12219561930967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12219561931523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6109780965611 + 6109780965612.

It is an arithmetic number, because the mean of its divisors is an integer number (6109780965612).

Almost surely, 2^{12219561931223} is an apocalyptic number.

12219561931223 is a deficient number, since it is larger than the sum of its proper divisors (1).

12219561931223 is an equidigital number, since it uses as much as digits as its factorization.

12219561931223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 47.

The spelling of 12219561931223 in words is "twelve trillion, two hundred nineteen billion, five hundred sixty-one million, nine hundred thirty-one thousand, two hundred twenty-three".