4432012121 has 8 divisors (see below), whose sum is σ = 4488969600. Its totient is φ = 4375213920.

The previous prime is 4432012111. The next prime is 4432012129. The reversal of 4432012121 is 1212102344.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4432012121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4432012093 and 4432012102.

It is not an unprimeable number, because it can be changed into a prime (4432012129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16700 + ... + 95618.

It is an arithmetic number, because the mean of its divisors is an integer number (561121200).

Almost surely, 2^4432012121 is an apocalyptic number.

It is an amenable number.

4432012121 is a deficient number, since it is larger than the sum of its proper divisors (56957479).

4432012121 is an equidigital number, since it uses as much as digits as its factorization.

4432012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79639.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4432012121 is about 66573.3589433491. The cubic root of 4432012121 is about 1642.6069139107.

Adding to 4432012121 its reverse (1212102344), we get a palindrome (5644114465).

The spelling of 4432012121 in words is "four billion, four hundred thirty-two million, twelve thousand, one hundred twenty-one".