2123233221 has 8 divisors (see below), whose sum is σ = 2835125280. Its totient is φ = 1413414992.

The previous prime is 2123233213. The next prime is 2123233267. The reversal of 2123233221 is 1223323212.

It is a happy number.

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 2123233221 - 2³ = 2123233213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2193233221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516066 + ... + 520163.

It is an arithmetic number, because the mean of its divisors is an integer number (354390660).

Almost surely, 2^2123233221 is an apocalyptic number.

It is an amenable number.

2123233221 is a deficient number, since it is larger than the sum of its proper divisors (711892059).

2123233221 is a wasteful number, since it uses less digits than its factorization.

2123233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036915.

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

The square root of 2123233221 is about 46078.5548927047. The cubic root of 2123233221 is about 1285.2843917273.

Adding to 2123233221 its reverse (1223323212), we get a palindrome (3346556433).

The spelling of 2123233221 in words is "two billion, one hundred twenty-three million, two hundred thirty-three thousand, two hundred twenty-one".