22002201181 has 2 divisors, whose sum is σ = 22002201182. Its totient is φ = 22002201180.

The previous prime is 22002201161. The next prime is 22002201223. The reversal of 22002201181 is 18110220022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21893937156 + 108264025 = 147966^2 + 10405^2 .

It is a cyclic number.

It is not a de Polignac number, because 22002201181 - 2¹⁵ = 22002168413 is a prime.

It is a super-2 number, since 2×22002201181² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22002201161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001100590 + 11001100591.

It is an arithmetic number, because the mean of its divisors is an integer number (11001100591).

Almost surely, 2^22002201181 is an apocalyptic number.

It is an amenable number.

22002201181 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002201181 is an equidigital number, since it uses as much as digits as its factorization.

22002201181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

The spelling of 22002201181 in words is "twenty-two billion, two million, two hundred one thousand, one hundred eighty-one".