22011099989 has 2 divisors, whose sum is σ = 22011099990. Its totient is φ = 22011099988.

The previous prime is 22011099967. The next prime is 22011100043. The reversal of 22011099989 is 98999011022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17791558225 + 4219541764 = 133385^2 + 64958^2 .

It is a cyclic number.

It is not a de Polignac number, because 22011099989 - 2¹⁶ = 22011034453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22011099919) 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, 11005549994 + 11005549995.

It is an arithmetic number, because the mean of its divisors is an integer number (11005549995).

Almost surely, 2^22011099989 is an apocalyptic number.

It is an amenable number.

22011099989 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011099989 is an equidigital number, since it uses as much as digits as its factorization.

22011099989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 50.

The spelling of 22011099989 in words is "twenty-two billion, eleven million, ninety-nine thousand, nine hundred eighty-nine".