222541181 has 2 divisors, whose sum is σ = 222541182. Its totient is φ = 222541180.

The previous prime is 222541171. The next prime is 222541229. The reversal of 222541181 is 181145222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217297081 + 5244100 = 14741^2 + 2290^2 .

It is a cyclic number.

It is not a de Polignac number, because 222541181 - 2¹⁸ = 222279037 is a prime.

It is a super-2 number, since 2×222541181² = 99049154481749522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222541181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222541141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111270590 + 111270591.

It is an arithmetic number, because the mean of its divisors is an integer number (111270591).

Almost surely, 2^222541181 is an apocalyptic number.

It is an amenable number.

222541181 is a deficient number, since it is larger than the sum of its proper divisors (1).

222541181 is an equidigital number, since it uses as much as digits as its factorization.

222541181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280, while the sum is 26.

The square root of 222541181 is about 14917.8142165667. The cubic root of 222541181 is about 605.9965190213.

The spelling of 222541181 in words is "two hundred twenty-two million, five hundred forty-one thousand, one hundred eighty-one".