1200220222111 has 8 divisors (see below), whose sum is σ = 1220586215040. Its totient is φ = 1179855005208.

The previous prime is 1200220222099. The next prime is 1200220222133. The reversal of 1200220222111 is 1112220220021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1200220222111 - 2⁵ = 1200220222079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200220226111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3525190 + ... + 3850636.

It is an arithmetic number, because the mean of its divisors is an integer number (152573276880).

Almost surely, 2^{1200220222111} is an apocalyptic number.

1200220222111 is a deficient number, since it is larger than the sum of its proper divisors (20365992929).

1200220222111 is an equidigital number, since it uses as much as digits as its factorization.

1200220222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388013.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1200220222111 its reverse (1112220220021), we get a palindrome (2312440442132).

The spelling of 1200220222111 in words is "one trillion, two hundred billion, two hundred twenty million, two hundred twenty-two thousand, one hundred eleven".