3221125005 has 128 divisors (see below), whose sum is σ = 6418944000. Its totient is φ = 1374734592.

The previous prime is 3221124901. The next prime is 3221125109. The reversal of 3221125005 is 5005211223.

It is an interprime number because it is at equal distance from previous prime (3221124901) and next prime (3221125109).

It is not a de Polignac number, because 3221125005 - 2¹⁰ = 3221123981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8113467 + ... + 8113863.

It is an arithmetic number, because the mean of its divisors is an integer number (50148000).

Almost surely, 2^3221125005 is an apocalyptic number.

3221125005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3221125005 is a deficient number, since it is larger than the sum of its proper divisors (3197818995).

3221125005 is a wasteful number, since it uses less digits than its factorization.

3221125005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 3221125005 is about 56754.9557748044. The cubic root of 3221125005 is about 1476.8482058389.

Adding to 3221125005 its reverse (5005211223), we get a palindrome (8226336228).

The spelling of 3221125005 in words is "three billion, two hundred twenty-one million, one hundred twenty-five thousand, five".