222433181 has 2 divisors, whose sum is σ = 222433182. Its totient is φ = 222433180.

The previous prime is 222433121. The next prime is 222433199. The reversal of 222433181 is 181334222.

222433181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140801956 + 81631225 = 11866^2 + 9035^2 .

It is a cyclic number.

It is not a de Polignac number, because 222433181 - 2¹⁰ = 222432157 is a prime.

It is a super-2 number, since 2×222433181² = 98953040019557522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222433181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222433121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111216590 + 111216591.

It is an arithmetic number, because the mean of its divisors is an integer number (111216591).

Almost surely, 2^222433181 is an apocalyptic number.

It is an amenable number.

222433181 is a deficient number, since it is larger than the sum of its proper divisors (1).

222433181 is an equidigital number, since it uses as much as digits as its factorization.

222433181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 26.

The square root of 222433181 is about 14914.1939440253. The cubic root of 222433181 is about 605.8984724277.

The spelling of 222433181 in words is "two hundred twenty-two million, four hundred thirty-three thousand, one hundred eighty-one".