6230221221 has 16 divisors (see below), whose sum is σ = 9495964800. Its totient is φ = 3559266048.

The previous prime is 6230221199. The next prime is 6230221223. The reversal of 6230221221 is 1221220326.

It is not a de Polignac number, because 6230221221 - 2¹¹ = 6230219173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6230221223) 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 in 15 ways as a sum of consecutive naturals, for example, 58945 + ... + 126233.

It is an arithmetic number, because the mean of its divisors is an integer number (593497800).

Almost surely, 2^6230221221 is an apocalyptic number.

It is an amenable number.

6230221221 is a deficient number, since it is larger than the sum of its proper divisors (3265743579).

6230221221 is a wasteful number, since it uses less digits than its factorization.

6230221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71708.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 6230221221 is about 78931.7503986830. The cubic root of 6230221221 is about 1840.0706121492.

Adding to 6230221221 its reverse (1221220326), we get a palindrome (7451441547).

The spelling of 6230221221 in words is "six billion, two hundred thirty million, two hundred twenty-one thousand, two hundred twenty-one".