2433221221 has 16 divisors (see below), whose sum is σ = 2569432320. Its totient is φ = 2299651200.

The previous prime is 2433221213. The next prime is 2433221281. The reversal of 2433221221 is 1221223342.

It is a cyclic number.

It is not a de Polignac number, because 2433221221 - 2³ = 2433221213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2433221192 and 2433221201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2433221201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1422915 + ... + 1424623.

It is an arithmetic number, because the mean of its divisors is an integer number (160589520).

Almost surely, 2^2433221221 is an apocalyptic number.

It is an amenable number.

2433221221 is a deficient number, since it is larger than the sum of its proper divisors (136211099).

2433221221 is a wasteful number, since it uses less digits than its factorization.

2433221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436.

The product of its digits is 1152, while the sum is 22.

The square root of 2433221221 is about 49327.6922326597. The cubic root of 2433221221 is about 1345.0152190757.

Adding to 2433221221 its reverse (1221223342), we get a palindrome (3654444563).

The spelling of 2433221221 in words is "two billion, four hundred thirty-three million, two hundred twenty-one thousand, two hundred twenty-one".