22065240262181 has 2 divisors, whose sum is σ = 22065240262182. Its totient is φ = 22065240262180.

The previous prime is 22065240262073. The next prime is 22065240262213. The reversal of 22065240262181 is 18126204256022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20834349865156 + 1230890397025 = 4564466^2 + 1109455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22065240262181 is a prime.

It is a super-2 number, since 2×22065240262181² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22065240264181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11032620131090 + 11032620131091.

It is an arithmetic number, because the mean of its divisors is an integer number (11032620131091).

Almost surely, 2^{22065240262181} is an apocalyptic number.

It is an amenable number.

22065240262181 is a deficient number, since it is larger than the sum of its proper divisors (1).

22065240262181 is an equidigital number, since it uses as much as digits as its factorization.

22065240262181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 22065240262181 in words is "twenty-two trillion, sixty-five billion, two hundred forty million, two hundred sixty-two thousand, one hundred eighty-one".