222132461 has 2 divisors, whose sum is σ = 222132462. Its totient is φ = 222132460.

The previous prime is 222132457. The next prime is 222132499. The reversal of 222132461 is 164231222.

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., 163686436 + 58446025 = 12794^2 + 7645^2 .

It is a cyclic number.

It is not a de Polignac number, because 222132461 - 2² = 222132457 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222132451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111066230 + 111066231.

It is an arithmetic number, because the mean of its divisors is an integer number (111066231).

Almost surely, 2^222132461 is an apocalyptic number.

It is an amenable number.

222132461 is a deficient number, since it is larger than the sum of its proper divisors (1).

222132461 is an equidigital number, since it uses as much as digits as its factorization.

222132461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 23.

The square root of 222132461 is about 14904.1088629948. The cubic root of 222132461 is about 605.6252998117.

Adding to 222132461 its reverse (164231222), we get a palindrome (386363683).

The spelling of 222132461 in words is "two hundred twenty-two million, one hundred thirty-two thousand, four hundred sixty-one".