2021061199 has 2 divisors, whose sum is σ = 2021061200. Its totient is φ = 2021061198.

The previous prime is 2021061193. The next prime is 2021061233. The reversal of 2021061199 is 9911601202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021061199 - 2³ = 2021061191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2021061199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021061191) 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 as a sum of consecutive naturals, namely, 1010530599 + 1010530600.

It is an arithmetic number, because the mean of its divisors is an integer number (1010530600).

Almost surely, 2^2021061199 is an apocalyptic number.

2021061199 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021061199 is an equidigital number, since it uses as much as digits as its factorization.

2021061199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 2021061199 is about 44956.2142423047. The cubic root of 2021061199 is about 1264.3281906220.

The spelling of 2021061199 in words is "two billion, twenty-one million, sixty-one thousand, one hundred ninety-nine".