22144003221287 has 2 divisors, whose sum is σ = 22144003221288. Its totient is φ = 22144003221286.

The previous prime is 22144003221251. The next prime is 22144003221293. The reversal of 22144003221287 is 78212230044122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22144003221287 - 2⁸ = 22144003221031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22144003221287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22144003221247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11072001610643 + 11072001610644.

It is an arithmetic number, because the mean of its divisors is an integer number (11072001610644).

Almost surely, 2^{22144003221287} is an apocalyptic number.

22144003221287 is a deficient number, since it is larger than the sum of its proper divisors (1).

22144003221287 is an equidigital number, since it uses as much as digits as its factorization.

22144003221287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86016, while the sum is 38.

The spelling of 22144003221287 in words is "twenty-two trillion, one hundred forty-four billion, three million, two hundred twenty-one thousand, two hundred eighty-seven".