10231221947 has 2 divisors, whose sum is σ = 10231221948. Its totient is φ = 10231221946.

The previous prime is 10231221941. The next prime is 10231222003. The reversal of 10231221947 is 74912213201.

10231221947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10231221947 - 2¹² = 10231217851 is a prime.

It is not a weakly prime, because it can be changed into another prime (10231221941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5115610973 + 5115610974.

It is an arithmetic number, because the mean of its divisors is an integer number (5115610974).

Almost surely, 2^10231221947 is an apocalyptic number.

10231221947 is a deficient number, since it is larger than the sum of its proper divisors (1).

10231221947 is an equidigital number, since it uses as much as digits as its factorization.

10231221947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 10231221947 in words is "ten billion, two hundred thirty-one million, two hundred twenty-one thousand, nine hundred forty-seven".