222461 has 2 divisors, whose sum is σ = 222462. Its totient is φ = 222460.

The previous prime is 222437. The next prime is 222493. The reversal of 222461 is 164222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219961 + 2500 = 469^2 + 50^2 .

It is a cyclic number.

It is not a de Polignac number, because 222461 - 2¹⁴ = 206077 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 (222161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111230 + 111231.

It is an arithmetic number, because the mean of its divisors is an integer number (111231).

2²²²⁴⁶¹ is an apocalyptic number.

It is an amenable number.

222461 is a deficient number, since it is larger than the sum of its proper divisors (1).

222461 is an equidigital number, since it uses as much as digits as its factorization.

222461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 17.

The square root of 222461 is about 471.6577148738. The cubic root of 222461 is about 60.5923730630.

Adding to 222461 its reverse (164222), we get a palindrome (386683).

The spelling of 222461 in words is "two hundred twenty-two thousand, four hundred sixty-one".