1200002122112 has 16 divisors (see below), whose sum is σ = 2390629227900. Its totient is φ = 600001060992.

The previous prime is 1200002122103. The next prime is 1200002122127. The reversal of 1200002122112 is 2112212000021.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 4687508162 + ... + 4687508417.

Almost surely, 2^{1200002122112} is an apocalyptic number.

It is an amenable number.

1200002122112 is a deficient number, since it is larger than the sum of its proper divisors (1190627105788).

1200002122112 is an frugal number, since it uses more digits than its factorization.

1200002122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9375016593 (or 9375016581 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1200002122112 its reverse (2112212000021), we get a palindrome (3312214122133).

The spelling of 1200002122112 in words is "one trillion, two hundred billion, two million, one hundred twenty-two thousand, one hundred twelve".