1200122112112 has 40 divisors (see below), whose sum is σ = 2898996273792. Its totient is φ = 467580043200.

The previous prime is 1200122112097. The next prime is 1200122112121. The reversal of 1200122112112 is 2112112210021.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487061314 + ... + 487063777.

Almost surely, 2^{1200122112112} is an apocalyptic number.

It is an amenable number.

1200122112112 is an abundant number, since it is smaller than the sum of its proper divisors (1698874161680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1200122112112 is a wasteful number, since it uses less digits than its factorization.

1200122112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974125117 (or 974125111 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1200122112112 its reverse (2112112210021), we get a palindrome (3312234322133).

The spelling of 1200122112112 in words is "one trillion, two hundred billion, one hundred twenty-two million, one hundred twelve thousand, one hundred twelve".