3201221100231 has 320 divisors, whose sum is σ = 6598757062656. Its totient is φ = 1494484992000.

The previous prime is 3201221100199. The next prime is 3201221100257. The reversal of 3201221100231 is 1320011221023.

3201221100231 is a `hidden beast` number, since 3 + 201 + 221 + 10 + 0 + 231 = 666.

It is not a de Polignac number, because 3201221100231 - 2⁵ = 3201221100199 is a prime.

It is a super-2 number, since 2×3201221100231² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201221100281) by changing a digit.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 2665462431 + ... + 2665463631.

Almost surely, 2^{3201221100231} is an apocalyptic number.

3201221100231 is an abundant number, since it is smaller than the sum of its proper divisors (3397535962425).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3201221100231 is a wasteful number, since it uses less digits than its factorization.

3201221100231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364 (or 2355 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 3201221100231 its reverse (1320011221023), we get a palindrome (4521232321254).

The spelling of 3201221100231 in words is "three trillion, two hundred one billion, two hundred twenty-one million, one hundred thousand, two hundred thirty-one".