2021111101982 has 32 divisors (see below), whose sum is σ = 3576635080704. Its totient is φ = 838223841600.

The previous prime is 2021111101957. The next prime is 2021111101991. The reversal of 2021111101982 is 2891011111202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24498482 + ... + 24580842.

It is an arithmetic number, because the mean of its divisors is an integer number (111769846272).

Almost surely, 2^{2021111101982} is an apocalyptic number.

2021111101982 is a deficient number, since it is larger than the sum of its proper divisors (1555523978722).

2021111101982 is a wasteful number, since it uses less digits than its factorization.

2021111101982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138944.

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

The spelling of 2021111101982 in words is "two trillion, twenty-one billion, one hundred eleven million, one hundred one thousand, nine hundred eighty-two".