3221125406 has 16 divisors (see below), whose sum is σ = 4886859600. Its totient is φ = 1592276928.

The previous prime is 3221125393. The next prime is 3221125429. The reversal of 3221125406 is 6045211223.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35930 + ... + 87938.

It is an arithmetic number, because the mean of its divisors is an integer number (305428725).

Almost surely, 2^3221125406 is an apocalyptic number.

3221125406 is a deficient number, since it is larger than the sum of its proper divisors (1665734194).

3221125406 is a wasteful number, since it uses less digits than its factorization.

3221125406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52363.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 3221125406 is about 56754.9593075354. The cubic root of 3221125406 is about 1476.8482671235.

Adding to 3221125406 its reverse (6045211223), we get a palindrome (9266336629).

The spelling of 3221125406 in words is "three billion, two hundred twenty-one million, one hundred twenty-five thousand, four hundred six".