3231424221 has 16 divisors (see below), whose sum is σ = 4681635840. Its totient is φ = 1975062960.

The previous prime is 3231424219. The next prime is 3231424247. The reversal of 3231424221 is 1224241323.

It is a happy number.

It is not a de Polignac number, because 3231424221 - 2¹ = 3231424219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3231424191 and 3231424200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231424421) 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, 912615 + ... + 916148.

It is an arithmetic number, because the mean of its divisors is an integer number (292602240).

Almost surely, 2^3231424221 is an apocalyptic number.

3231424221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3231424221 is a deficient number, since it is larger than the sum of its proper divisors (1450211619).

3231424221 is a wasteful number, since it uses less digits than its factorization.

3231424221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828816.

The product of its digits is 2304, while the sum is 24.

The square root of 3231424221 is about 56845.6174300183. The cubic root of 3231424221 is about 1478.4205546483.

Adding to 3231424221 its reverse (1224241323), we get a palindrome (4455665544).

The spelling of 3231424221 in words is "three billion, two hundred thirty-one million, four hundred twenty-four thousand, two hundred twenty-one".