22144441987 has 2 divisors, whose sum is σ = 22144441988. Its totient is φ = 22144441986.

The previous prime is 22144441939. The next prime is 22144442003. The reversal of 22144441987 is 78914444122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22144441987 - 2¹⁹ = 22143917699 is a prime.

It is not a weakly prime, because it can be changed into another prime (22144447987) 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, 11072220993 + 11072220994.

It is an arithmetic number, because the mean of its divisors is an integer number (11072220994).

Almost surely, 2^22144441987 is an apocalyptic number.

22144441987 is a deficient number, since it is larger than the sum of its proper divisors (1).

22144441987 is an equidigital number, since it uses as much as digits as its factorization.

22144441987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 516096, while the sum is 46.

The spelling of 22144441987 in words is "twenty-two billion, one hundred forty-four million, four hundred forty-one thousand, nine hundred eighty-seven".