2222665 has 16 divisors (see below), whose sum is σ = 2868480. Its totient is φ = 1647360.

The previous prime is 2222663. The next prime is 2222683. The reversal of 2222665 is 5662222.

It is not a de Polignac number, because 2222665 - 2¹ = 2222663 is a prime.

It is a d-powerful number, because it can be written as 2² + 2⁹ + 2²⁰ + 2²⁰ + 6³ + 6⁶ + 5⁷ .

2222665 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2222663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6550 + ... + 6880.

It is an arithmetic number, because the mean of its divisors is an integer number (179280).

2^2222665 is an apocalyptic number.

It is an amenable number.

2222665 is a deficient number, since it is larger than the sum of its proper divisors (645815).

2222665 is a wasteful number, since it uses less digits than its factorization.

2222665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432.

The product of its digits is 2880, while the sum is 25.

The square root of 2222665 is about 1490.8604897843. The cubic root of 2222665 is about 130.5042545454.

Adding to 2222665 its reverse (5662222), we get a palindrome (7884887).

The spelling of 2222665 in words is "two million, two hundred twenty-two thousand, six hundred sixty-five".