2021141999 has 4 divisors (see below), whose sum is σ = 2086340160. Its totient is φ = 1955943840.

The previous prime is 2021141989. The next prime is 2021142031. The reversal of 2021141999 is 9991411202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2021141999 - 2²⁰ = 2020093423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021141989) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 32599034 + ... + 32599095.

It is an arithmetic number, because the mean of its divisors is an integer number (521585040).

Almost surely, 2^2021141999 is an apocalyptic number.

2021141999 is a deficient number, since it is larger than the sum of its proper divisors (65198161).

2021141999 is an equidigital number, since it uses as much as digits as its factorization.

2021141999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65198160.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 2021141999 is about 44957.1128855046. The cubic root of 2021141999 is about 1264.3450392552.

The spelling of 2021141999 in words is "two billion, twenty-one million, one hundred forty-one thousand, nine hundred ninety-nine".