213022201 has 4 divisors (see below), whose sum is σ = 243453952. Its totient is φ = 182590452.

The previous prime is 213022169. The next prime is 213022217. The reversal of 213022201 is 102220312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213022201 - 2⁵ = 213022169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213022501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15215865 + ... + 15215878.

It is an arithmetic number, because the mean of its divisors is an integer number (60863488).

Almost surely, 2^213022201 is an apocalyptic number.

It is an amenable number.

213022201 is a deficient number, since it is larger than the sum of its proper divisors (30431751).

213022201 is an equidigital number, since it uses as much as digits as its factorization.

213022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30431750.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 213022201 is about 14595.2800932356. The cubic root of 213022201 is about 597.2300103116.

Adding to 213022201 its reverse (102220312), we get a palindrome (315242513).

The spelling of 213022201 in words is "two hundred thirteen million, twenty-two thousand, two hundred one".