222222120201181 has 2 divisors, whose sum is σ = 222222120201182. Its totient is φ = 222222120201180.

The previous prime is 222222120201157. The next prime is 222222120201223. The reversal of 222222120201181 is 181102021222222.

It is a happy number.

222222120201181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149909903812900 + 72312216388281 = 12243770^2 + 8503659^2 .

It is a cyclic number.

It is not a de Polignac number, because 222222120201181 - 2¹⁵ = 222222120168413 is a prime.

It is a super-2 number, since 2×222222120201181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222222100201181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111111060100590 + 111111060100591.

It is an arithmetic number, because the mean of its divisors is an integer number (111111060100591).

Almost surely, 2^{222222120201181} is an apocalyptic number.

It is an amenable number.

222222120201181 is a deficient number, since it is larger than the sum of its proper divisors (1).

222222120201181 is an equidigital number, since it uses as much as digits as its factorization.

222222120201181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2048, while the sum is 28.

The spelling of 222222120201181 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred twenty million, two hundred one thousand, one hundred eighty-one".