10112221187 has 2 divisors, whose sum is σ = 10112221188. Its totient is φ = 10112221186.

The previous prime is 10112221177. The next prime is 10112221199. The reversal of 10112221187 is 78112221101.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (78112221101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10112221187 - 2⁸ = 10112220931 is a prime.

It is not a weakly prime, because it can be changed into another prime (10112221177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5056110593 + 5056110594.

It is an arithmetic number, because the mean of its divisors is an integer number (5056110594).

Almost surely, 2^10112221187 is an apocalyptic number.

10112221187 is a deficient number, since it is larger than the sum of its proper divisors (1).

10112221187 is an equidigital number, since it uses as much as digits as its factorization.

10112221187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 26.

Adding to 10112221187 its reverse (78112221101), we get a palindrome (88224442288).

The spelling of 10112221187 in words is "ten billion, one hundred twelve million, two hundred twenty-one thousand, one hundred eighty-seven".