4331222121 has 8 divisors (see below), whose sum is σ = 6078908320. Its totient is φ = 2735508672.

The previous prime is 4331222111. The next prime is 4331222131. The reversal of 4331222121 is 1212221334.

It is an interprime number because it is at equal distance from previous prime (4331222111) and next prime (4331222131).

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

It is not a de Polignac number, because 4331222121 - 2⁵ = 4331222089 is a prime.

It is a super-2 number, since 2×4331222121² = 37518970122879477282, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4331222111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37993120 + ... + 37993233.

It is an arithmetic number, because the mean of its divisors is an integer number (759863540).

Almost surely, 2^4331222121 is an apocalyptic number.

It is an amenable number.

4331222121 is a deficient number, since it is larger than the sum of its proper divisors (1747686199).

4331222121 is a wasteful number, since it uses less digits than its factorization.

4331222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75986375.

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

The square root of 4331222121 is about 65812.0210979727. The cubic root of 4331222121 is about 1630.0596062612.

Adding to 4331222121 its reverse (1212221334), we get a palindrome (5543443455).

The spelling of 4331222121 in words is "four billion, three hundred thirty-one million, two hundred twenty-two thousand, one hundred twenty-one".