22001022112109 has 2 divisors, whose sum is σ = 22001022112110. Its totient is φ = 22001022112108.

The previous prime is 22001022112081. The next prime is 22001022112133. The reversal of 22001022112109 is 90121122010022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21967237834084 + 33784278025 = 4686922^2 + 183805^2 .

It is a cyclic number.

It is not a de Polignac number, because 22001022112109 - 2²⁸ = 22000753676653 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22001022112189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000511056054 + 11000511056055.

It is an arithmetic number, because the mean of its divisors is an integer number (11000511056055).

Almost surely, 2^{22001022112109} is an apocalyptic number.

It is an amenable number.

22001022112109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22001022112109 is an equidigital number, since it uses as much as digits as its factorization.

22001022112109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 22001022112109 in words is "twenty-two trillion, one billion, twenty-two million, one hundred twelve thousand, one hundred nine".