2212665 has 32 divisors (see below), whose sum is σ = 4359936. Its totient is φ = 933120.

The previous prime is 2212663. The next prime is 2212673. The reversal of 2212665 is 5662122.

It is not a de Polignac number, because 2212665 - 2¹ = 2212663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 555 + ... + 2175.

It is an arithmetic number, because the mean of its divisors is an integer number (136248).

2^2212665 is an apocalyptic number.

It is an amenable number.

2212665 is a deficient number, since it is larger than the sum of its proper divisors (2147271).

2212665 is a wasteful number, since it uses less digits than its factorization.

2212665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649.

The product of its digits is 1440, while the sum is 24.

The square root of 2212665 is about 1487.5029411736. The cubic root of 2212665 is about 130.3082429068.

Adding to 2212665 its reverse (5662122), we get a palindrome (7874787).

The spelling of 2212665 in words is "two million, two hundred twelve thousand, six hundred sixty-five".