22144312044391 has 2 divisors, whose sum is σ = 22144312044392. Its totient is φ = 22144312044390.

The previous prime is 22144312044287. The next prime is 22144312044431. The reversal of 22144312044391 is 19344021344122.

It is an a-pointer prime, because the next prime (22144312044431) can be obtained adding 22144312044391 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22144312044391 - 2¹⁹ = 22144311520103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22144312044091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11072156022195 + 11072156022196.

It is an arithmetic number, because the mean of its divisors is an integer number (11072156022196).

Almost surely, 2^{22144312044391} is an apocalyptic number.

22144312044391 is a deficient number, since it is larger than the sum of its proper divisors (1).

22144312044391 is an equidigital number, since it uses as much as digits as its factorization.

22144312044391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 22144312044391 in words is "twenty-two trillion, one hundred forty-four billion, three hundred twelve million, forty-four thousand, three hundred ninety-one".