4232122221 has 32 divisors (see below), whose sum is σ = 6055378560. Its totient is φ = 2624154624.

The previous prime is 4232122127. The next prime is 4232122247. The reversal of 4232122221 is 1222212324.

It is not a de Polignac number, because 4232122221 - 2²¹ = 4230025069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4232122021) 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 31 ways as a sum of consecutive naturals, for example, 265345 + ... + 280841.

It is an arithmetic number, because the mean of its divisors is an integer number (189230580).

Almost surely, 2^4232122221 is an apocalyptic number.

It is an amenable number.

4232122221 is a deficient number, since it is larger than the sum of its proper divisors (1823256339).

4232122221 is a wasteful number, since it uses less digits than its factorization.

4232122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15645.

The product of its digits is 768, while the sum is 21.

The square root of 4232122221 is about 65054.7632460529. The cubic root of 4232122221 is about 1617.5314510613.

Adding to 4232122221 its reverse (1222212324), we get a palindrome (5454334545).

The spelling of 4232122221 in words is "four billion, two hundred thirty-two million, one hundred twenty-two thousand, two hundred twenty-one".