22243412987 has 2 divisors, whose sum is σ = 22243412988. Its totient is φ = 22243412986.

The previous prime is 22243412963. The next prime is 22243413053. The reversal of 22243412987 is 78921434222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22243412987 - 2¹⁴ = 22243396603 is a prime.

It is not a weakly prime, because it can be changed into another prime (22243412957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11121706493 + 11121706494.

It is an arithmetic number, because the mean of its divisors is an integer number (11121706494).

Almost surely, 2^22243412987 is an apocalyptic number.

22243412987 is a deficient number, since it is larger than the sum of its proper divisors (1).

22243412987 is an equidigital number, since it uses as much as digits as its factorization.

22243412987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 44.

The spelling of 22243412987 in words is "twenty-two billion, two hundred forty-three million, four hundred twelve thousand, nine hundred eighty-seven".