2222391868 has 12 divisors (see below), whose sum is σ = 3903538912. Its totient is φ = 1107095040.

The previous prime is 2222391811. The next prime is 2222391907. The reversal of 2222391868 is 8681932222.

It is a super-2 number, since 2×2222391868² = 9878051229905058848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024005 + ... + 1026172.

Almost surely, 2^2222391868 is an apocalyptic number.

It is an amenable number.

2222391868 is a deficient number, since it is larger than the sum of its proper divisors (1681147044).

2222391868 is a wasteful number, since it uses less digits than its factorization.

2222391868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050452 (or 2050450 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 2222391868 is about 47142.2514099613. The cubic root of 2222391868 is about 1304.9890865829.

The spelling of 2222391868 in words is "two billion, two hundred twenty-two million, three hundred ninety-one thousand, eight hundred sixty-eight".