20122220219999 has 2 divisors, whose sum is σ = 20122220220000. Its totient is φ = 20122220219998.

The previous prime is 20122220219993. The next prime is 20122220220001. The reversal of 20122220219999 is 99991202222102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20122220219999 - 2⁴⁴ = 2530034175583 is a prime.

Together with 20122220220001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20122220219993) 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, 10061110109999 + 10061110110000.

It is an arithmetic number, because the mean of its divisors is an integer number (10061110110000).

Almost surely, 2^{20122220219999} is an apocalyptic number.

20122220219999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122220219999 is an equidigital number, since it uses as much as digits as its factorization.

20122220219999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 20122220219999 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty million, two hundred nineteen thousand, nine hundred ninety-nine".