222684461 has 2 divisors, whose sum is σ = 222684462. Its totient is φ = 222684460.

The previous prime is 222684457. The next prime is 222684499. The reversal of 222684461 is 164486222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218862436 + 3822025 = 14794^2 + 1955^2 .

It is a cyclic number.

It is not a de Polignac number, because 222684461 - 2² = 222684457 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222684421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111342230 + 111342231.

It is an arithmetic number, because the mean of its divisors is an integer number (111342231).

Almost surely, 2^222684461 is an apocalyptic number.

It is an amenable number.

222684461 is a deficient number, since it is larger than the sum of its proper divisors (1).

222684461 is an equidigital number, since it uses as much as digits as its factorization.

222684461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 35.

The square root of 222684461 is about 14922.6157559591. The cubic root of 222684461 is about 606.1265452235.

The spelling of 222684461 in words is "two hundred twenty-two million, six hundred eighty-four thousand, four hundred sixty-one".