1121202011982 has 64 divisors (see below), whose sum is σ = 2443837132800. Its totient is φ = 340875139200.

The previous prime is 1121202011977. The next prime is 1121202012043. The reversal of 1121202011982 is 2891102021211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1967257 + ... + 2472347.

It is an arithmetic number, because the mean of its divisors is an integer number (38184955200).

Almost surely, 2^{1121202011982} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121202011982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1221918566400).

1121202011982 is an abundant number, since it is smaller than the sum of its proper divisors (1322635120818).

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

1121202011982 is a wasteful number, since it uses less digits than its factorization.

1121202011982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505449.

The product of its (nonzero) digits is 1152, while the sum is 30.

The spelling of 1121202011982 in words is "one trillion, one hundred twenty-one billion, two hundred two million, eleven thousand, nine hundred eighty-two".