3231211012221 has 8 divisors (see below), whose sum is σ = 4561709664384. Its totient is φ = 2027426517440.

The previous prime is 3231211012219. The next prime is 3231211012259. The reversal of 3231211012221 is 1222101121323.

3231211012221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 3231211012221 - 2¹ = 3231211012219 is a prime.

It is a super-2 number, since 2×3231211012221² (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 (3231211012201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31678539285 + ... + 31678539386.

It is an arithmetic number, because the mean of its divisors is an integer number (570213708048).

Almost surely, 2^{3231211012221} is an apocalyptic number.

It is an amenable number.

3231211012221 is a deficient number, since it is larger than the sum of its proper divisors (1330498652163).

3231211012221 is a wasteful number, since it uses less digits than its factorization.

3231211012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63357078691.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 3231211012221 its reverse (1222101121323), we get a palindrome (4453312133544).

The spelling of 3231211012221 in words is "three trillion, two hundred thirty-one billion, two hundred eleven million, twelve thousand, two hundred twenty-one".