1222020011982 has 96 divisors (see below), whose sum is σ = 3127161060864. Its totient is φ = 317407693680.

The previous prime is 1222020011977. The next prime is 1222020012001. The reversal of 1222020011982 is 2891100202221.

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 47 ways as a sum of consecutive naturals, for example, 1170118 + ... + 1952745.

It is an arithmetic number, because the mean of its divisors is an integer number (32574594384).

Almost surely, 2^{1222020011982} is an apocalyptic number.

1222020011982 is an abundant number, since it is smaller than the sum of its proper divisors (1905141048882).

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

1222020011982 is a wasteful number, since it uses less digits than its factorization.

1222020011982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122915 (or 3122886 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The spelling of 1222020011982 in words is "one trillion, two hundred twenty-two billion, twenty million, eleven thousand, nine hundred eighty-two".