1200001120112 has 80 divisors (see below), whose sum is σ = 2517330690048. Its totient is φ = 552521502720.

The previous prime is 1200001120103. The next prime is 1200001120121. The reversal of 1200001120112 is 2110211000021.

It is an interprime number because it is at equal distance from previous prime (1200001120103) and next prime (1200001120121).

It is a junction number, because it is equal to n+sod(n) for n = 1200001120093 and 1200001120102.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1929233 + ... + 2474255.

Almost surely, 2^{1200001120112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200001120112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1258665345024).

1200001120112 is an abundant number, since it is smaller than the sum of its proper divisors (1317329569936).

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

1200001120112 is a wasteful number, since it uses less digits than its factorization.

1200001120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545278 (or 545272 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1200001120112 its reverse (2110211000021), we get a palindrome (3310212120133).

The spelling of 1200001120112 in words is "one trillion, two hundred billion, one million, one hundred twenty thousand, one hundred twelve".