3221033021021 has 4 divisors (see below), whose sum is σ = 3221282359200. Its totient is φ = 3220783682844.

The previous prime is 3221033020987. The next prime is 3221033021023. The reversal of 3221033021021 is 1201203301223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3221033021021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221033020984 and 3221033021002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221033021023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124649711 + ... + 124675548.

It is an arithmetic number, because the mean of its divisors is an integer number (805320589800).

Almost surely, 2^{3221033021021} is an apocalyptic number.

It is an amenable number.

3221033021021 is a deficient number, since it is larger than the sum of its proper divisors (249338179).

3221033021021 is a wasteful number, since it uses less digits than its factorization.

3221033021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249338178.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 3221033021021 its reverse (1201203301223), we get a palindrome (4422236322244).

The spelling of 3221033021021 in words is "three trillion, two hundred twenty-one billion, thirty-three million, twenty-one thousand, twenty-one".