701221 has 2 divisors, whose sum is σ = 701222. Its totient is φ = 701220.

The previous prime is 701219. The next prime is 701227. The reversal of 701221 is 122107.

701221 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 can be written as a sum of positive squares in only one way, i.e., 688900 + 12321 = 830^2 + 111^2 .

It is a cyclic number.

It is not a de Polignac number, because 701221 - 2¹ = 701219 is a prime.

Together with 701219, it forms a pair of twin primes.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (701227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350610 + 350611.

It is an arithmetic number, because the mean of its divisors is an integer number (350611).

2⁷⁰¹²²¹ is an apocalyptic number.

It is an amenable number.

701221 is a deficient number, since it is larger than the sum of its proper divisors (1).

701221 is an equidigital number, since it uses as much as digits as its factorization.

701221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 701221 is about 837.3893956816. The cubic root of 701221 is about 88.8419954624.

Adding to 701221 its reverse (122107), we get a palindrome (823328).

The spelling of 701221 in words is "seven hundred one thousand, two hundred twenty-one", and thus it is an iban number.