1200022000222 has 4 divisors (see below), whose sum is σ = 1800033000336. Its totient is φ = 600011000110.

The previous prime is 1200022000189. The next prime is 1200022000279. The reversal of 1200022000222 is 2220002200021.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300005500054 + ... + 300005500057.

It is an arithmetic number, because the mean of its divisors is an integer number (450008250084).

Almost surely, 2^{1200022000222} is an apocalyptic number.

1200022000222 is a deficient number, since it is larger than the sum of its proper divisors (600011000114).

1200022000222 is an equidigital number, since it uses as much as digits as its factorization.

1200022000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600011000113.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 1200022000222 its reverse (2220002200021), we get a palindrome (3420024200243).

The spelling of 1200022000222 in words is "one trillion, two hundred billion, twenty-two million, two hundred twenty-two", and thus it is an aban number.