20001222100199 has 2 divisors, whose sum is σ = 20001222100200. Its totient is φ = 20001222100198.

The previous prime is 20001222100187. The next prime is 20001222100201. The reversal of 20001222100199 is 99100122210002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001222100199 is a prime.

Together with 20001222100201, 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 (20001222100099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000611050099 + 10000611050100.

It is an arithmetic number, because the mean of its divisors is an integer number (10000611050100).

Almost surely, 2^{20001222100199} is an apocalyptic number.

20001222100199 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001222100199 is an equidigital number, since it uses as much as digits as its factorization.

20001222100199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 20001222100199 in words is "twenty trillion, one billion, two hundred twenty-two million, one hundred thousand, one hundred ninety-nine".