7342707221 has 2 divisors, whose sum is σ = 7342707222. Its totient is φ = 7342707220.

The previous prime is 7342707217. The next prime is 7342707227. The reversal of 7342707221 is 1227072437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4832196196 + 2510511025 = 69514^2 + 50105^2 .

It is a cyclic number.

It is not a de Polignac number, because 7342707221 - 2² = 7342707217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7342707227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3671353610 + 3671353611.

It is an arithmetic number, because the mean of its divisors is an integer number (3671353611).

Almost surely, 2^7342707221 is an apocalyptic number.

It is an amenable number.

7342707221 is a deficient number, since it is larger than the sum of its proper divisors (1).

7342707221 is an equidigital number, since it uses as much as digits as its factorization.

7342707221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 7342707221 is about 85689.5980910169. The cubic root of 7342707221 is about 1943.6530190052.

Adding to 7342707221 its reverse (1227072437), we get a palindrome (8569779658).

The spelling of 7342707221 in words is "seven billion, three hundred forty-two million, seven hundred seven thousand, two hundred twenty-one".