3231101221 has 8 divisors (see below), whose sum is σ = 3403951200. Its totient is φ = 3058530480.

The previous prime is 3231101177. The next prime is 3231101231. The reversal of 3231101221 is 1221011323.

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-3231101221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3231101195 and 3231101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231101231) 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, 45835 + ... + 92536.

It is an arithmetic number, because the mean of its divisors is an integer number (425493900).

Almost surely, 2^3231101221 is an apocalyptic number.

It is an amenable number.

3231101221 is a deficient number, since it is larger than the sum of its proper divisors (172849979).

3231101221 is a wasteful number, since it uses less digits than its factorization.

3231101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139619.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3231101221 is about 56842.7763308584. The cubic root of 3231101221 is about 1478.3712940418.

Adding to 3231101221 its reverse (1221011323), we get a palindrome (4452112544).

The spelling of 3231101221 in words is "three billion, two hundred thirty-one million, one hundred one thousand, two hundred twenty-one".