2213233221 has 32 divisors (see below), whose sum is σ = 3154032000. Its totient is φ = 1376483328.

The previous prime is 2213233207. The next prime is 2213233249. The reversal of 2213233221 is 1223323122.

It is a happy number.

It is not a de Polignac number, because 2213233221 - 2⁷ = 2213233093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213233021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1485645 + ... + 1487133.

It is an arithmetic number, because the mean of its divisors is an integer number (98563500).

Almost surely, 2^2213233221 is an apocalyptic number.

It is an amenable number.

2213233221 is a deficient number, since it is larger than the sum of its proper divisors (940798779).

2213233221 is a wasteful number, since it uses less digits than its factorization.

2213233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893.

The product of its digits is 864, while the sum is 21.

The square root of 2213233221 is about 47045.0127112322. The cubic root of 2213233221 is about 1303.1939650704.

Adding to 2213233221 its reverse (1223323122), we get a palindrome (3436556343).

The spelling of 2213233221 in words is "two billion, two hundred thirteen million, two hundred thirty-three thousand, two hundred twenty-one".