222115565 has 16 divisors (see below), whose sum is σ = 306384768. Its totient is φ = 151423296.

The previous prime is 222115559. The next prime is 222115571. The reversal of 222115565 is 565511222.

It is an interprime number because it is at equal distance from previous prime (222115559) and next prime (222115571).

It is a cyclic number.

It is not a de Polignac number, because 222115565 - 2⁴ = 222115549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12287 + ... + 24396.

It is an arithmetic number, because the mean of its divisors is an integer number (19149048).

Almost surely, 2^222115565 is an apocalyptic number.

It is an amenable number.

222115565 is a deficient number, since it is larger than the sum of its proper divisors (84269203).

222115565 is a wasteful number, since it uses less digits than its factorization.

222115565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36868.

The product of its digits is 6000, while the sum is 29.

The square root of 222115565 is about 14903.5420286588. The cubic root of 222115565 is about 605.6099442525.

Adding to 222115565 its reverse (565511222), we get a palindrome (787626787).

The spelling of 222115565 in words is "two hundred twenty-two million, one hundred fifteen thousand, five hundred sixty-five".