22111000112009 has 2 divisors, whose sum is σ = 22111000112010. Its totient is φ = 22111000112008.

The previous prime is 22111000111997. The next prime is 22111000112107. The reversal of 22111000112009 is 90021100011122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12307839112009 + 9803161000000 = 3508253^2 + 3131000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22111000112009 is a prime.

It is not a weakly prime, because it can be changed into another prime (22111000112809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055500056004 + 11055500056005.

It is an arithmetic number, because the mean of its divisors is an integer number (11055500056005).

Almost surely, 2^{22111000112009} is an apocalyptic number.

It is an amenable number.

22111000112009 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111000112009 is an equidigital number, since it uses as much as digits as its factorization.

22111000112009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 22111000112009 in words is "twenty-two trillion, one hundred eleven billion, one hundred twelve thousand, nine".