220201112191 has 2 divisors, whose sum is σ = 220201112192. Its totient is φ = 220201112190.

The previous prime is 220201112119. The next prime is 220201112221. The reversal of 220201112191 is 191211102022.

Together with previous prime (220201112119) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220201112191 - 2⁷ = 220201112063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220201110191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110100556095 + 110100556096.

It is an arithmetic number, because the mean of its divisors is an integer number (110100556096).

Almost surely, 2^220201112191 is an apocalyptic number.

220201112191 is a deficient number, since it is larger than the sum of its proper divisors (1).

220201112191 is an equidigital number, since it uses as much as digits as its factorization.

220201112191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 220201112191 in words is "two hundred twenty billion, two hundred one million, one hundred twelve thousand, one hundred ninety-one".