7220213 has 16 divisors (see below), whose sum is σ = 9695616. Its totient is φ = 5192640.

The previous prime is 7220201. The next prime is 7220219. The reversal of 7220213 is 3120227.

It is a cyclic number.

It is not a de Polignac number, because 7220213 - 2⁶ = 7220149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7220191 and 7220200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2606 + ... + 4607.

It is an arithmetic number, because the mean of its divisors is an integer number (605976).

Almost surely, 2^7220213 is an apocalyptic number.

It is an amenable number.

7220213 is a deficient number, since it is larger than the sum of its proper divisors (2475403).

7220213 is a wasteful number, since it uses less digits than its factorization.

7220213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7244.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 7220213 is about 2687.0454034125. The cubic root of 7220213 is about 193.2784065792.

The spelling of 7220213 in words is "seven million, two hundred twenty thousand, two hundred thirteen".