22111048987 has 2 divisors, whose sum is σ = 22111048988. Its totient is φ = 22111048986.

The previous prime is 22111048951. The next prime is 22111049029. The reversal of 22111048987 is 78984011122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22111048987 - 2⁷ = 22111048859 is a prime.

It is not a weakly prime, because it can be changed into another prime (22111048907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055524493 + 11055524494.

It is an arithmetic number, because the mean of its divisors is an integer number (11055524494).

Almost surely, 2^22111048987 is an apocalyptic number.

22111048987 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111048987 is an equidigital number, since it uses as much as digits as its factorization.

22111048987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 43.

The spelling of 22111048987 in words is "twenty-two billion, one hundred eleven million, forty-eight thousand, nine hundred eighty-seven".