222563431 has 2 divisors, whose sum is σ = 222563432. Its totient is φ = 222563430.

The previous prime is 222563417. The next prime is 222563437. The reversal of 222563431 is 134365222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222563431 - 2²⁵ = 189008999 is a prime.

It is a super-2 number, since 2×222563431² = 99068961636983522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222563431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222563437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111281715 + 111281716.

It is an arithmetic number, because the mean of its divisors is an integer number (111281716).

Almost surely, 2^222563431 is an apocalyptic number.

222563431 is a deficient number, since it is larger than the sum of its proper divisors (1).

222563431 is an equidigital number, since it uses as much as digits as its factorization.

222563431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 28.

The square root of 222563431 is about 14918.5599506119. The cubic root of 222563431 is about 606.0167144943.

It can be divided in two parts, 2225 and 63431, that added together give a palindrome (65656).

The spelling of 222563431 in words is "two hundred twenty-two million, five hundred sixty-three thousand, four hundred thirty-one".