220112211181 has 2 divisors, whose sum is σ = 220112211182. Its totient is φ = 220112211180.

The previous prime is 220112211167. The next prime is 220112211229. The reversal of 220112211181 is 181112211022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162033621156 + 58078590025 = 402534^2 + 240995^2 .

It is a cyclic number.

It is not a de Polignac number, because 220112211181 - 2³⁵ = 185752472813 is a prime.

It is a super-2 number, since 2×220112211181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220112211101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110056105590 + 110056105591.

It is an arithmetic number, because the mean of its divisors is an integer number (110056105591).

Almost surely, 2^220112211181 is an apocalyptic number.

It is an amenable number.

220112211181 is a deficient number, since it is larger than the sum of its proper divisors (1).

220112211181 is an equidigital number, since it uses as much as digits as its factorization.

220112211181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 22.

The spelling of 220112211181 in words is "two hundred twenty billion, one hundred twelve million, two hundred eleven thousand, one hundred eighty-one".