3231002011221 has 48 divisors (see below), whose sum is σ = 4797480280320. Its totient is φ = 2094404273280.

The previous prime is 3231002011187. The next prime is 3231002011343. The reversal of 3231002011221 is 1221102001323.

3231002011221 is a `hidden beast` number, since 32 + 310 + 0 + 201 + 122 + 1 = 666.

It is not a de Polignac number, because 3231002011221 - 2¹³ = 3231002003029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3231002011194 and 3231002011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231002011921) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77537490 + ... + 77579148.

It is an arithmetic number, because the mean of its divisors is an integer number (99947505840).

Almost surely, 2^{3231002011221} is an apocalyptic number.

It is an amenable number.

3231002011221 is a deficient number, since it is larger than the sum of its proper divisors (1566478269099).

3231002011221 is a wasteful number, since it uses less digits than its factorization.

3231002011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42906 (or 42903 counting only the distinct ones).

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

Adding to 3231002011221 its reverse (1221102001323), we get a palindrome (4452104012544).

The spelling of 3231002011221 in words is "three trillion, two hundred thirty-one billion, two million, eleven thousand, two hundred twenty-one".