1020001012099 has 2 divisors, whose sum is σ = 1020001012100. Its totient is φ = 1020001012098.

The previous prime is 1020001012091. The next prime is 1020001012207. The reversal of 1020001012099 is 9902101000201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020001012099 - 2³ = 1020001012091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020001012091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510000506049 + 510000506050.

It is an arithmetic number, because the mean of its divisors is an integer number (510000506050).

Almost surely, 2^{1020001012099} is an apocalyptic number.

1020001012099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020001012099 is an equidigital number, since it uses as much as digits as its factorization.

1020001012099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 1020001012099 in words is "one trillion, twenty billion, one million, twelve thousand, ninety-nine".