1010020201999 has 2 divisors, whose sum is σ = 1010020202000. Its totient is φ = 1010020201998.

The previous prime is 1010020201987. The next prime is 1010020202011. The reversal of 1010020201999 is 9991020200101.

It is a balanced prime because it is at equal distance from previous prime (1010020201987) and next prime (1010020202011).

It is an emirp because it is prime and its reverse (9991020200101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1010020201999 - 2⁷ = 1010020201871 is a prime.

It is a super-2 number, since 2×1010020201999² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010020201909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505010100999 + 505010101000.

It is an arithmetic number, because the mean of its divisors is an integer number (505010101000).

Almost surely, 2^{1010020201999} is an apocalyptic number.

1010020201999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010020201999 is an equidigital number, since it uses as much as digits as its factorization.

1010020201999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 1010020201999 in words is "one trillion, ten billion, twenty million, two hundred one thousand, nine hundred ninety-nine".