1200201201992 has 128 divisors (see below), whose sum is σ = 2478441369600. Its totient is φ = 541517011200.

The previous prime is 1200201201977. The next prime is 1200201202027. The reversal of 1200201201992 is 2991021020021.

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 31 ways as a sum of consecutive naturals, for example, 1211100617 + ... + 1211101607.

It is an arithmetic number, because the mean of its divisors is an integer number (19362823200).

Almost surely, 2^{1200201201992} 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 1200201201992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1239220684800).

1200201201992 is an abundant number, since it is smaller than the sum of its proper divisors (1278240167608).

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

1200201201992 is a wasteful number, since it uses less digits than its factorization.

1200201201992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227 (or 2223 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 1200201201992 in words is "one trillion, two hundred billion, two hundred one million, two hundred one thousand, nine hundred ninety-two".