1200112022122 has 64 divisors (see below), whose sum is σ = 2078447898240. Its totient is φ = 515100902400.

The previous prime is 1200112022119. The next prime is 1200112022143. The reversal of 1200112022122 is 2212202110021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1200112022096 and 1200112022105.

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, 7530222 + ... + 7687942.

It is an arithmetic number, because the mean of its divisors is an integer number (32475748410).

Almost surely, 2^{1200112022122} is an apocalyptic number.

1200112022122 is a deficient number, since it is larger than the sum of its proper divisors (878335876118).

1200112022122 is a wasteful number, since it uses less digits than its factorization.

1200112022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158039.

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

Adding to 1200112022122 its reverse (2212202110021), we get a palindrome (3412314132143).

The spelling of 1200112022122 in words is "one trillion, two hundred billion, one hundred twelve million, twenty-two thousand, one hundred twenty-two".