1200220112222 has 4 divisors (see below), whose sum is σ = 1800330168336. Its totient is φ = 600110056110.

The previous prime is 1200220112167. The next prime is 1200220112249. The reversal of 1200220112222 is 2222110220021.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1200220112222.

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, 300055028054 + ... + 300055028057.

It is an arithmetic number, because the mean of its divisors is an integer number (450082542084).

Almost surely, 2^{1200220112222} is an apocalyptic number.

1200220112222 is a deficient number, since it is larger than the sum of its proper divisors (600110056114).

1200220112222 is an equidigital number, since it uses as much as digits as its factorization.

1200220112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600110056113.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1200220112222 its reverse (2222110220021), we get a palindrome (3422330332243).

The spelling of 1200220112222 in words is "one trillion, two hundred billion, two hundred twenty million, one hundred twelve thousand, two hundred twenty-two".