1021020202199 has 2 divisors, whose sum is σ = 1021020202200. Its totient is φ = 1021020202198.

The previous prime is 1021020202193. The next prime is 1021020202207. The reversal of 1021020202199 is 9912020201201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021020202199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021020202193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510510101099 + 510510101100.

It is an arithmetic number, because the mean of its divisors is an integer number (510510101100).

Almost surely, 2^{1021020202199} is an apocalyptic number.

1021020202199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021020202199 is an equidigital number, since it uses as much as digits as its factorization.

1021020202199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 1021020202199 in words is "one trillion, twenty-one billion, twenty million, two hundred two thousand, one hundred ninety-nine".