22444111144397 has 2 divisors, whose sum is σ = 22444111144398. Its totient is φ = 22444111144396.

The previous prime is 22444111144319. The next prime is 22444111144447. The reversal of 22444111144397 is 79344111144422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14462915484196 + 7981195660201 = 3803014^2 + 2825101^2 .

It is a cyclic number.

It is not a de Polignac number, because 22444111144397 - 2²⁰ = 22444110095821 is a prime.

It is a super-2 number, since 2×22444111144397² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22444111144307) 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, 11222055572198 + 11222055572199.

It is an arithmetic number, because the mean of its divisors is an integer number (11222055572199).

Almost surely, 2^{22444111144397} is an apocalyptic number.

It is an amenable number.

22444111144397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22444111144397 is an equidigital number, since it uses as much as digits as its factorization.

22444111144397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 47.

The spelling of 22444111144397 in words is "twenty-two trillion, four hundred forty-four billion, one hundred eleven million, one hundred forty-four thousand, three hundred ninety-seven".