2220243221 has 8 divisors (see below), whose sum is σ = 2538877440. Its totient is φ = 1901973168.

The previous prime is 2220243191. The next prime is 2220243251. The reversal of 2220243221 is 1223420222.

It is an interprime number because it is at equal distance from previous prime (2220243191) and next prime (2220243251).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2220243221 - 2¹⁰ = 2220242197 is a prime.

It is a super-3 number, since 3×2220243221³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2220243193 and 2220243202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220243251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77846 + ... + 102471.

It is an arithmetic number, because the mean of its divisors is an integer number (317359680).

Almost surely, 2^2220243221 is an apocalyptic number.

It is an amenable number.

2220243221 is a deficient number, since it is larger than the sum of its proper divisors (318634219).

2220243221 is a wasteful number, since it uses less digits than its factorization.

2220243221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182083.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2220243221 is about 47119.4569259876. The cubic root of 2220243221 is about 1304.5683889476.

Adding to 2220243221 its reverse (1223420222), we get a palindrome (3443663443).

The spelling of 2220243221 in words is "two billion, two hundred twenty million, two hundred forty-three thousand, two hundred twenty-one".