222501247 has 2 divisors, whose sum is σ = 222501248. Its totient is φ = 222501246.

The previous prime is 222501211. The next prime is 222501259. The reversal of 222501247 is 742105222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222501247 - 2¹⁵ = 222468479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222501277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111250623 + 111250624.

It is an arithmetic number, because the mean of its divisors is an integer number (111250624).

Almost surely, 2^222501247 is an apocalyptic number.

222501247 is a deficient number, since it is larger than the sum of its proper divisors (1).

222501247 is an equidigital number, since it uses as much as digits as its factorization.

222501247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 222501247 is about 14916.4756896527. The cubic root of 222501247 is about 605.9602690824.

Adding to 222501247 its reverse (742105222), we get a palindrome (964606469).

The spelling of 222501247 in words is "two hundred twenty-two million, five hundred one thousand, two hundred forty-seven".