221233303147 has 2 divisors, whose sum is σ = 221233303148. Its totient is φ = 221233303146.

The previous prime is 221233303129. The next prime is 221233303199. The reversal of 221233303147 is 741303332122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221233303147 - 2¹¹ = 221233301099 is a prime.

It is not a weakly prime, because it can be changed into another prime (221233333147) 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, 110616651573 + 110616651574.

It is an arithmetic number, because the mean of its divisors is an integer number (110616651574).

Almost surely, 2^221233303147 is an apocalyptic number.

221233303147 is a deficient number, since it is larger than the sum of its proper divisors (1).

221233303147 is an equidigital number, since it uses as much as digits as its factorization.

221233303147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 31.

Adding to 221233303147 its reverse (741303332122), we get a palindrome (962536635269).

The spelling of 221233303147 in words is "two hundred twenty-one billion, two hundred thirty-three million, three hundred three thousand, one hundred forty-seven".