22450324181 has 2 divisors, whose sum is σ = 22450324182. Its totient is φ = 22450324180.

The previous prime is 22450324109. The next prime is 22450324207. The reversal of 22450324181 is 18142305422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17215801681 + 5234522500 = 131209^2 + 72350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22450324181 is a prime.

It is a super-2 number, since 2×22450324181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22450354181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11225162090 + 11225162091.

It is an arithmetic number, because the mean of its divisors is an integer number (11225162091).

Almost surely, 2^22450324181 is an apocalyptic number.

It is an amenable number.

22450324181 is a deficient number, since it is larger than the sum of its proper divisors (1).

22450324181 is an equidigital number, since it uses as much as digits as its factorization.

22450324181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 32.

The spelling of 22450324181 in words is "twenty-two billion, four hundred fifty million, three hundred twenty-four thousand, one hundred eighty-one".