7220201 has 2 divisors, whose sum is σ = 7220202. Its totient is φ = 7220200.

The previous prime is 7220177. The next prime is 7220219. The reversal of 7220201 is 1020227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4494400 + 2725801 = 2120^2 + 1651^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7220201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7220231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3610100 + 3610101.

It is an arithmetic number, because the mean of its divisors is an integer number (3610101).

Almost surely, 2^7220201 is an apocalyptic number.

It is an amenable number.

7220201 is a deficient number, since it is larger than the sum of its proper divisors (1).

7220201 is an equidigital number, since it uses as much as digits as its factorization.

7220201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 7220201 is about 2687.0431704757. The cubic root of 7220201 is about 193.2782995028.

Adding to 7220201 its reverse (1020227), we get a palindrome (8240428).

The spelling of 7220201 in words is "seven million, two hundred twenty thousand, two hundred one".