20202211999 has 2 divisors, whose sum is σ = 20202212000. Its totient is φ = 20202211998.

The previous prime is 20202211993. The next prime is 20202212077. The reversal of 20202211999 is 99911220202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20202211999 - 2¹³ = 20202203807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20202211993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101105999 + 10101106000.

It is an arithmetic number, because the mean of its divisors is an integer number (10101106000).

Almost surely, 2^20202211999 is an apocalyptic number.

20202211999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202211999 is an equidigital number, since it uses as much as digits as its factorization.

20202211999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 20202211999 in words is "twenty billion, two hundred two million, two hundred eleven thousand, nine hundred ninety-nine".