1200222111122 has 64 divisors (see below), whose sum is σ = 1857211947360. Its totient is φ = 581572755456.

The previous prime is 1200222111089. The next prime is 1200222111131. The reversal of 1200222111122 is 2211112220021.

It can be written as a sum of positive squares in 16 ways, for example, as 1035792672121 + 164429439001 = 1017739^2 + 405499^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1200222111122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 874159628 + ... + 874161000.

Almost surely, 2^{1200222111122} is an apocalyptic number.

1200222111122 is a deficient number, since it is larger than the sum of its proper divisors (656989836238).

1200222111122 is a wasteful number, since it uses less digits than its factorization.

1200222111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1200222111122 its reverse (2211112220021), we get a palindrome (3411334331143).

The spelling of 1200222111122 in words is "one trillion, two hundred billion, two hundred twenty-two million, one hundred eleven thousand, one hundred twenty-two".