221322030191 has 2 divisors, whose sum is σ = 221322030192. Its totient is φ = 221322030190.

The previous prime is 221322030113. The next prime is 221322030211. The reversal of 221322030191 is 191030223122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221322030191 - 2¹⁸ = 221321768047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221322030191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221322030991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110661015095 + 110661015096.

It is an arithmetic number, because the mean of its divisors is an integer number (110661015096).

Almost surely, 2^221322030191 is an apocalyptic number.

221322030191 is a deficient number, since it is larger than the sum of its proper divisors (1).

221322030191 is an equidigital number, since it uses as much as digits as its factorization.

221322030191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 221322030191 in words is "two hundred twenty-one billion, three hundred twenty-two million, thirty thousand, one hundred ninety-one".