22144123440961 has 2 divisors, whose sum is σ = 22144123440962. Its totient is φ = 22144123440960.

The previous prime is 22144123440953. The next prime is 22144123440977. The reversal of 22144123440961 is 16904432144122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19262056988736 + 2882066452225 = 4388856^2 + 1697665^2 .

It is a cyclic number.

It is not a de Polignac number, because 22144123440961 - 2³ = 22144123440953 is a prime.

It is not a weakly prime, because it can be changed into another prime (22144123440991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11072061720480 + 11072061720481.

It is an arithmetic number, because the mean of its divisors is an integer number (11072061720481).

Almost surely, 2^{22144123440961} is an apocalyptic number.

It is an amenable number.

22144123440961 is a deficient number, since it is larger than the sum of its proper divisors (1).

22144123440961 is an equidigital number, since it uses as much as digits as its factorization.

22144123440961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 22144123440961 in words is "twenty-two trillion, one hundred forty-four billion, one hundred twenty-three million, four hundred forty thousand, nine hundred sixty-one".