222194461 has 2 divisors, whose sum is σ = 222194462. Its totient is φ = 222194460.

The previous prime is 222194449. The next prime is 222194473. The reversal of 222194461 is 164491222.

It is a balanced prime because it is at equal distance from previous prime (222194449) and next prime (222194473).

It can be written as a sum of positive squares in only one way, i.e., 222188836 + 5625 = 14906^2 + 75^2 .

It is a cyclic number.

It is not a de Polignac number, because 222194461 - 2⁹ = 222193949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222194561) 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, 111097230 + 111097231.

It is an arithmetic number, because the mean of its divisors is an integer number (111097231).

Almost surely, 2^222194461 is an apocalyptic number.

It is an amenable number.

222194461 is a deficient number, since it is larger than the sum of its proper divisors (1).

222194461 is an equidigital number, since it uses as much as digits as its factorization.

222194461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 222194461 is about 14906.1886812156. The cubic root of 222194461 is about 605.6816404827.

The spelling of 222194461 in words is "two hundred twenty-two million, one hundred ninety-four thousand, four hundred sixty-one".