2021102002099 has 2 divisors, whose sum is σ = 2021102002100. Its totient is φ = 2021102002098.

The previous prime is 2021102002097. The next prime is 2021102002133. The reversal of 2021102002099 is 9902002011202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021102002099 - 2¹ = 2021102002097 is a prime.

Together with 2021102002097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2021102002097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010551001049 + 1010551001050.

It is an arithmetic number, because the mean of its divisors is an integer number (1010551001050).

Almost surely, 2^{2021102002099} is an apocalyptic number.

2021102002099 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021102002099 is an equidigital number, since it uses as much as digits as its factorization.

2021102002099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 2021102002099 in words is "two trillion, twenty-one billion, one hundred two million, two thousand, ninety-nine".