2021199 has 16 divisors (see below), whose sum is σ = 2808960. Its totient is φ = 1291680.

The previous prime is 2021197. The next prime is 2021203. The reversal of 2021199 is 9911202.

It is not a de Polignac number, because 2021199 - 2¹ = 2021197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14472 + ... + 14610.

It is an arithmetic number, because the mean of its divisors is an integer number (175560).

2^2021199 is an apocalyptic number.

2021199 is a deficient number, since it is larger than the sum of its proper divisors (787761).

2021199 is a wasteful number, since it uses less digits than its factorization.

2021199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 2021199 is about 1421.6887845095. The cubic root of 2021199 is about 126.4356924987.

The spelling of 2021199 in words is "two million, twenty-one thousand, one hundred ninety-nine".