2222166667 has 16 divisors (see below), whose sum is σ = 2611252224. Its totient is φ = 1851336000.

The previous prime is 2222166659. The next prime is 2222166677. The reversal of 2222166667 is 7666612222.

It is a cyclic number.

It is not a de Polignac number, because 2222166667 - 2³ = 2222166659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2222166607) 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, 63492 + ... + 92062.

It is an arithmetic number, because the mean of its divisors is an integer number (163203264).

Almost surely, 2^2222166667 is an apocalyptic number.

2222166667 is a deficient number, since it is larger than the sum of its proper divisors (389085557).

2222166667 is a wasteful number, since it uses less digits than its factorization.

2222166667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28890.

The product of its digits is 145152, while the sum is 40.

The square root of 2222166667 is about 47139.8628233049. The cubic root of 2222166667 is about 1304.9450057319.

Adding to 2222166667 its reverse (7666612222), we get a palindrome (9888778889).

It can be divided in two parts, 22221 and 66667, that added together give a palindrome (88888).

The spelling of 2222166667 in words is "two billion, two hundred twenty-two million, one hundred sixty-six thousand, six hundred sixty-seven".