200120021111191 has 2 divisors, whose sum is σ = 200120021111192. Its totient is φ = 200120021111190.

The previous prime is 200120021111173. The next prime is 200120021111203. The reversal of 200120021111191 is 191111120021002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200120021111191 is a prime.

It is a super-3 number, since 3×200120021111191³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200120021111161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060010555595 + 100060010555596.

It is an arithmetic number, because the mean of its divisors is an integer number (100060010555596).

Almost surely, 2^{200120021111191} is an apocalyptic number.

200120021111191 is a deficient number, since it is larger than the sum of its proper divisors (1).

200120021111191 is an equidigital number, since it uses as much as digits as its factorization.

200120021111191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 22.

Adding to 200120021111191 its reverse (191111120021002), we get a palindrome (391231141132193).

The spelling of 200120021111191 in words is "two hundred trillion, one hundred twenty billion, twenty-one million, one hundred eleven thousand, one hundred ninety-one".