2021011111982 has 16 divisors (see below), whose sum is σ = 3049885827072. Its totient is φ = 1004383361880.

The previous prime is 2021011111907. The next prime is 2021011112011. The reversal of 2021011111982 is 2891111101202.

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 7 ways as a sum of consecutive naturals, for example, 4666043 + ... + 5080745.

It is an arithmetic number, because the mean of its divisors is an integer number (190617864192).

Almost surely, 2^{2021011111982} is an apocalyptic number.

2021011111982 is a deficient number, since it is larger than the sum of its proper divisors (1028874715090).

2021011111982 is a wasteful number, since it uses less digits than its factorization.

2021011111982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429463.

The product of its (nonzero) digits is 576, while the sum is 29.

The spelling of 2021011111982 in words is "two trillion, twenty-one billion, eleven million, one hundred eleven thousand, nine hundred eighty-two".