12220222222 has 8 divisors (see below), whose sum is σ = 19740359016. Its totient is φ = 5640102552.

The previous prime is 12220222187. The next prime is 12220222283. The reversal of 12220222222 is 22222202221.

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

12220222222 is a modest number, since divided by 222222 gives 12220 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 12220222222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235004248 + ... + 235004299.

It is an arithmetic number, because the mean of its divisors is an integer number (2467544877).

Almost surely, 2^12220222222 is an apocalyptic number.

12220222222 is a deficient number, since it is larger than the sum of its proper divisors (7520136794).

12220222222 is a wasteful number, since it uses less digits than its factorization.

12220222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470008562.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 12220222222 its reverse (22222202221), we get a palindrome (34442424443).

The spelling of 12220222222 in words is "twelve billion, two hundred twenty million, two hundred twenty-two thousand, two hundred twenty-two".