2021000199 has 16 divisors (see below), whose sum is σ = 2802539520. Its totient is φ = 1294319520.

The previous prime is 2021000147. The next prime is 2021000251. The reversal of 2021000199 is 9910001202.

It is an interprime number because it is at equal distance from previous prime (2021000147) and next prime (2021000251).

It is a de Polignac number, because none of the positive numbers 2^k-2021000199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021000119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106467 + ... + 124004.

It is an arithmetic number, because the mean of its divisors is an integer number (175158720).

Almost surely, 2^2021000199 is an apocalyptic number.

2021000199 is a deficient number, since it is larger than the sum of its proper divisors (781539321).

2021000199 is a wasteful number, since it uses less digits than its factorization.

2021000199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230590.

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

The square root of 2021000199 is about 44955.5357992762. The cubic root of 2021000199 is about 1264.3154704405.

The spelling of 2021000199 in words is "two billion, twenty-one million, one hundred ninety-nine", and thus it is an aban number.