7221204349 has 2 divisors, whose sum is σ = 7221204350. Its totient is φ = 7221204348.

The previous prime is 7221204301. The next prime is 7221204451. The reversal of 7221204349 is 9434021227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4790024100 + 2431180249 = 69210^2 + 49307^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7221204349 is a prime.

It is a super-3 number, since 3×7221204349³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7221207349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3610602174 + 3610602175.

It is an arithmetic number, because the mean of its divisors is an integer number (3610602175).

Almost surely, 2^7221204349 is an apocalyptic number.

It is an amenable number.

7221204349 is a deficient number, since it is larger than the sum of its proper divisors (1).

7221204349 is an equidigital number, since it uses as much as digits as its factorization.

7221204349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 7221204349 is about 84977.6697079886. The cubic root of 7221204349 is about 1932.8725200549.

The spelling of 7221204349 in words is "seven billion, two hundred twenty-one million, two hundred four thousand, three hundred forty-nine".