220426230191 has 2 divisors, whose sum is σ = 220426230192. Its totient is φ = 220426230190.

The previous prime is 220426230131. The next prime is 220426230257. The reversal of 220426230191 is 191032624022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220426230191 - 2¹⁸ = 220425968047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220426230121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110213115095 + 110213115096.

It is an arithmetic number, because the mean of its divisors is an integer number (110213115096).

Almost surely, 2^220426230191 is an apocalyptic number.

220426230191 is a deficient number, since it is larger than the sum of its proper divisors (1).

220426230191 is an equidigital number, since it uses as much as digits as its factorization.

220426230191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 220426230191 in words is "two hundred twenty billion, four hundred twenty-six million, two hundred thirty thousand, one hundred ninety-one".