20202220099 has 2 divisors, whose sum is σ = 20202220100. Its totient is φ = 20202220098.

The previous prime is 20202220097. The next prime is 20202220111. The reversal of 20202220099 is 99002220202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20202220099 - 2¹ = 20202220097 is a prime.

Together with 20202220097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20202220097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101110049 + 10101110050.

It is an arithmetic number, because the mean of its divisors is an integer number (10101110050).

Almost surely, 2^20202220099 is an apocalyptic number.

20202220099 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202220099 is an equidigital number, since it uses as much as digits as its factorization.

20202220099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 20202220099 in words is "twenty billion, two hundred two million, two hundred twenty thousand, ninety-nine".