213222301 has 4 divisors (see below), whose sum is σ = 216225504. Its totient is φ = 210219100.

The previous prime is 213222293. The next prime is 213222311. The reversal of 213222301 is 103222312.

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 213222301 - 2³ = 213222293 is a prime.

It is a super-3 number, since 3×213222301³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213222311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501495 + ... + 1501636.

It is an arithmetic number, because the mean of its divisors is an integer number (54056376).

Almost surely, 2^213222301 is an apocalyptic number.

It is an amenable number.

213222301 is a deficient number, since it is larger than the sum of its proper divisors (3003203).

213222301 is an equidigital number, since it uses as much as digits as its factorization.

213222301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003202.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 213222301 is about 14602.1334400149. The cubic root of 213222301 is about 597.4169522129.

Adding to 213222301 its reverse (103222312), we get a palindrome (316444613).

The spelling of 213222301 in words is "two hundred thirteen million, two hundred twenty-two thousand, three hundred one".