2213330221 has 4 divisors (see below), whose sum is σ = 2229253600. Its totient is φ = 2197406844.

The previous prime is 2213330179. The next prime is 2213330239. The reversal of 2213330221 is 1220333122.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1220333122 = 2 ⋅610166561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2213330221 is a prime.

It is a super-3 number, since 3×2213330221³ (a number of 29 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 (2213330621) 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, 7961481 + ... + 7961758.

It is an arithmetic number, because the mean of its divisors is an integer number (557313400).

Almost surely, 2^2213330221 is an apocalyptic number.

It is an amenable number.

2213330221 is a deficient number, since it is larger than the sum of its proper divisors (15923379).

2213330221 is a wasteful number, since it uses less digits than its factorization.

2213330221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15923378.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2213330221 is about 47046.0436274933. The cubic root of 2213330221 is about 1303.2130032761.

Adding to 2213330221 its reverse (1220333122), we get a palindrome (3433663343).

The spelling of 2213330221 in words is "two billion, two hundred thirteen million, three hundred thirty thousand, two hundred twenty-one".