4233212121 has 8 divisors (see below), whose sum is σ = 5764374144. Its totient is φ = 2762095760.

The previous prime is 4233212107. The next prime is 4233212129. The reversal of 4233212121 is 1212123324.

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 4233212121 - 2⁵ = 4233212089 is a prime.

It is a super-3 number, since 3×4233212121³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4233212129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15011250 + ... + 15011531.

It is an arithmetic number, because the mean of its divisors is an integer number (720546768).

Almost surely, 2^4233212121 is an apocalyptic number.

It is an amenable number.

4233212121 is a deficient number, since it is larger than the sum of its proper divisors (1531162023).

4233212121 is a wasteful number, since it uses less digits than its factorization.

4233212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30022831.

The product of its digits is 576, while the sum is 21.

The square root of 4233212121 is about 65063.1394954163. The cubic root of 4233212121 is about 1617.6702936341.

Adding to 4233212121 its reverse (1212123324), we get a palindrome (5445335445).

The spelling of 4233212121 in words is "four billion, two hundred thirty-three million, two hundred twelve thousand, one hundred twenty-one".