3201253221 has 32 divisors (see below), whose sum is σ = 4603955328. Its totient is φ = 1971210240.

The previous prime is 3201253219. The next prime is 3201253241. The reversal of 3201253221 is 1223521023.

It is not a de Polignac number, because 3201253221 - 2¹ = 3201253219 is a prime.

It is a super-3 number, since 3×3201253221³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201253241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1825281 + ... + 1827033.

It is an arithmetic number, because the mean of its divisors is an integer number (143873604).

Almost surely, 2^3201253221 is an apocalyptic number.

It is an amenable number.

3201253221 is a deficient number, since it is larger than the sum of its proper divisors (1402702107).

3201253221 is a wasteful number, since it uses less digits than its factorization.

3201253221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3201253221 is about 56579.6184239519. The cubic root of 3201253221 is about 1473.8049454170.

Adding to 3201253221 its reverse (1223521023), we get a palindrome (4424774244).

The spelling of 3201253221 in words is "three billion, two hundred one million, two hundred fifty-three thousand, two hundred twenty-one".