3201220033221 has 8 divisors (see below), whose sum is σ = 4878049574464. Its totient is φ = 1829268590400.

The previous prime is 3201220033211. The next prime is 3201220033237. The reversal of 3201220033221 is 1223300221023.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3201220033221 - 2¹¹ = 3201220031173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 152439049201 = 3201220033221 / (3 + 2 + 0 + 1 + 2 + 2 + 0 + 0 + 3 + 3 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201220033211) by changing a digit.

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, 76219524580 + ... + 76219524621.

It is an arithmetic number, because the mean of its divisors is an integer number (609756196808).

Almost surely, 2^{3201220033221} is an apocalyptic number.

It is an amenable number.

3201220033221 is a deficient number, since it is larger than the sum of its proper divisors (1676829541243).

3201220033221 is a wasteful number, since it uses less digits than its factorization.

3201220033221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152439049211.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 3201220033221 its reverse (1223300221023), we get a palindrome (4424520254244).

The spelling of 3201220033221 in words is "three trillion, two hundred one billion, two hundred twenty million, thirty-three thousand, two hundred twenty-one".