10021232191 has 2 divisors, whose sum is σ = 10021232192. Its totient is φ = 10021232190.

The previous prime is 10021232189. The next prime is 10021232197. The reversal of 10021232191 is 19123212001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10021232191 - 2¹ = 10021232189 is a prime.

Together with 10021232189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10021232197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010616095 + 5010616096.

It is an arithmetic number, because the mean of its divisors is an integer number (5010616096).

Almost surely, 2^10021232191 is an apocalyptic number.

10021232191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021232191 is an equidigital number, since it uses as much as digits as its factorization.

10021232191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 10021232191 its reverse (19123212001), we get a palindrome (29144444192).

The spelling of 10021232191 in words is "ten billion, twenty-one million, two hundred thirty-two thousand, one hundred ninety-one".