222002461 has 2 divisors, whose sum is σ = 222002462. Its totient is φ = 222002460.

The previous prime is 222002393. The next prime is 222002467. The reversal of 222002461 is 164200222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216266436 + 5736025 = 14706^2 + 2395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222002461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222002467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111001230 + 111001231.

It is an arithmetic number, because the mean of its divisors is an integer number (111001231).

Almost surely, 2^222002461 is an apocalyptic number.

It is an amenable number.

222002461 is a deficient number, since it is larger than the sum of its proper divisors (1).

222002461 is an equidigital number, since it uses as much as digits as its factorization.

222002461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 222002461 is about 14899.7470112751. The cubic root of 222002461 is about 605.5071321016.

Adding to 222002461 its reverse (164200222), we get a palindrome (386202683).

The spelling of 222002461 in words is "two hundred twenty-two million, two thousand, four hundred sixty-one".