4233220121 has 16 divisors (see below), whose sum is σ = 4801655040. Its totient is φ = 3699717120.

The previous prime is 4233220109. The next prime is 4233220153. The reversal of 4233220121 is 1210223324.

It is a cyclic number.

It is not a de Polignac number, because 4233220121 - 2¹⁸ = 4232957977 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4233220093 and 4233220102.

It is not an unprimeable number, because it can be changed into a prime (4233220181) 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, 517856 + ... + 525966.

It is an arithmetic number, because the mean of its divisors is an integer number (300103440).

Almost surely, 2^4233220121 is an apocalyptic number.

It is an amenable number.

4233220121 is a deficient number, since it is larger than the sum of its proper divisors (568434919).

4233220121 is a wasteful number, since it uses less digits than its factorization.

4233220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10256.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 4233220121 is about 65063.2009741298. The cubic root of 4233220121 is about 1617.6713126676.

Adding to 4233220121 its reverse (1210223324), we get a palindrome (5443443445).

The spelling of 4233220121 in words is "four billion, two hundred thirty-three million, two hundred twenty thousand, one hundred twenty-one".