20021110099499 has 2 divisors, whose sum is σ = 20021110099500. Its totient is φ = 20021110099498.

The previous prime is 20021110099483. The next prime is 20021110099511. The reversal of 20021110099499 is 99499001112002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20021110099499 - 2⁴ = 20021110099483 is a prime.

It is not a weakly prime, because it can be changed into another prime (20021110029499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010555049749 + 10010555049750.

It is an arithmetic number, because the mean of its divisors is an integer number (10010555049750).

Almost surely, 2^{20021110099499} is an apocalyptic number.

20021110099499 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021110099499 is an equidigital number, since it uses as much as digits as its factorization.

20021110099499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 47.

The spelling of 20021110099499 in words is "twenty trillion, twenty-one billion, one hundred ten million, ninety-nine thousand, four hundred ninety-nine".