22101009989 has 2 divisors, whose sum is σ = 22101009990. Its totient is φ = 22101009988.

The previous prime is 22101009977. The next prime is 22101009991. The reversal of 22101009989 is 98990010122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22099200964 + 1809025 = 148658^2 + 1345^2 .

It is a cyclic number.

It is not a de Polignac number, because 22101009989 - 2¹² = 22101005893 is a prime.

Together with 22101009991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22101009929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050504994 + 11050504995.

It is an arithmetic number, because the mean of its divisors is an integer number (11050504995).

Almost surely, 2^22101009989 is an apocalyptic number.

It is an amenable number.

22101009989 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101009989 is an equidigital number, since it uses as much as digits as its factorization.

22101009989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 41.

The spelling of 22101009989 in words is "twenty-two billion, one hundred one million, nine thousand, nine hundred eighty-nine".