2222426666 has 8 divisors (see below), whose sum is σ = 3335026500. Its totient is φ = 1110751168.

The previous prime is 2222426639. The next prime is 2222426669. The reversal of 2222426666 is 6666242222.

It can be written as a sum of positive squares in 2 ways, for example, as 1860628225 + 361798441 = 43135^2 + 19021^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2222426669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225041 + ... + 234708.

Almost surely, 2^2222426666 is an apocalyptic number.

2222426666 is a deficient number, since it is larger than the sum of its proper divisors (1112599834).

2222426666 is a wasteful number, since it uses less digits than its factorization.

2222426666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462168.

The product of its digits is 165888, while the sum is 38.

The square root of 2222426666 is about 47142.6204829558. The cubic root of 2222426666 is about 1304.9958976790.

Adding to 2222426666 its reverse (6666242222), we get a palindrome (8888668888).

The spelling of 2222426666 in words is "two billion, two hundred twenty-two million, four hundred twenty-six thousand, six hundred sixty-six".