3201221403 has 12 divisors (see below), whose sum is σ = 4867354440. Its totient is φ = 2021823936.

The previous prime is 3201221369. The next prime is 3201221423. The reversal of 3201221403 is 3041221023.

It is not a de Polignac number, because 3201221403 - 2¹² = 3201217307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3201221423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9360126 + ... + 9360467.

It is an arithmetic number, because the mean of its divisors is an integer number (405612870).

Almost surely, 2^3201221403 is an apocalyptic number.

3201221403 is a deficient number, since it is larger than the sum of its proper divisors (1666133037).

3201221403 is a wasteful number, since it uses less digits than its factorization.

3201221403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18720618 (or 18720615 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3201221403 is about 56579.3372442626. The cubic root of 3201221403 is about 1473.8000625709.

Adding to 3201221403 its reverse (3041221023), we get a palindrome (6242442426).

The spelling of 3201221403 in words is "three billion, two hundred one million, two hundred twenty-one thousand, four hundred three".