12200121191 has 2 divisors, whose sum is σ = 12200121192. Its totient is φ = 12200121190.

The previous prime is 12200121181. The next prime is 12200121221. The reversal of 12200121191 is 19112100221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12200121191 - 2¹⁰ = 12200120167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12200121181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100060595 + 6100060596.

It is an arithmetic number, because the mean of its divisors is an integer number (6100060596).

Almost surely, 2^12200121191 is an apocalyptic number.

12200121191 is a deficient number, since it is larger than the sum of its proper divisors (1).

12200121191 is an equidigital number, since it uses as much as digits as its factorization.

12200121191 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 20.

The spelling of 12200121191 in words is "twelve billion, two hundred million, one hundred twenty-one thousand, one hundred ninety-one".