202221213 has 16 divisors (see below), whose sum is σ = 276787200. Its totient is φ = 131264496.

The previous prime is 202221203. The next prime is 202221233. The reversal of 202221213 is 312122202.

It is a happy number.

202221213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202221213 - 2⁴ = 202221197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202221192 and 202221201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202221203) 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, 24456 + ... + 31662.

It is an arithmetic number, because the mean of its divisors is an integer number (17299200).

Almost surely, 2^202221213 is an apocalyptic number.

It is an amenable number.

202221213 is a deficient number, since it is larger than the sum of its proper divisors (74565987).

202221213 is a wasteful number, since it uses less digits than its factorization.

202221213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7456.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 202221213 is about 14220.4505202894. The cubic root of 202221213 is about 586.9605374228.

Adding to 202221213 its reverse (312122202), we get a palindrome (514343415).

The spelling of 202221213 in words is "two hundred two million, two hundred twenty-one thousand, two hundred thirteen".