222260639 has 2 divisors, whose sum is σ = 222260640. Its totient is φ = 222260638.

The previous prime is 222260609. The next prime is 222260671. The reversal of 222260639 is 936062222.

It is an a-pointer prime, because the next prime (222260671) can be obtained adding 222260639 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222260639 - 2⁸ = 222260383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222260609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111130319 + 111130320.

It is an arithmetic number, because the mean of its divisors is an integer number (111130320).

Almost surely, 2^222260639 is an apocalyptic number.

222260639 is a deficient number, since it is larger than the sum of its proper divisors (1).

222260639 is an equidigital number, since it uses as much as digits as its factorization.

222260639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 222260639 is about 14908.4083322131. The cubic root of 222260639 is about 605.7417662252.

The spelling of 222260639 in words is "two hundred twenty-two million, two hundred sixty thousand, six hundred thirty-nine".