2222566 has 4 divisors (see below), whose sum is σ = 3333852. Its totient is φ = 1111282.

The previous prime is 2222543. The next prime is 2222567. The reversal of 2222566 is 6652222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6652222 = 2 ⋅3326111.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 2222566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555640 + ... + 555643.

It is an arithmetic number, because the mean of its divisors is an integer number (833463).

2^2222566 is an apocalyptic number.

2222566 is a deficient number, since it is larger than the sum of its proper divisors (1111286).

2222566 is a wasteful number, since it uses less digits than its factorization.

2222566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111285.

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

The square root of 2222566 is about 1490.8272871128. The cubic root of 2222566 is about 130.5023169145.

Adding to 2222566 its reverse (6652222), we get a palindrome (8874788).

The spelling of 2222566 in words is "two million, two hundred twenty-two thousand, five hundred sixty-six".