3221311021121 has 4 divisors (see below), whose sum is σ = 3221326257600. Its totient is φ = 3221295784644.

The previous prime is 3221311020997. The next prime is 3221311021133. The reversal of 3221311021121 is 1211201131223.

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-3221311021121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221311021093 and 3221311021102.

It is not an unprimeable number, because it can be changed into a prime (3221311021141) 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, 7296581 + ... + 7725458.

It is an arithmetic number, because the mean of its divisors is an integer number (805331564400).

Almost surely, 2^{3221311021121} is an apocalyptic number.

It is an amenable number.

3221311021121 is a deficient number, since it is larger than the sum of its proper divisors (15236479).

3221311021121 is a wasteful number, since it uses less digits than its factorization.

3221311021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15236478.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 3221311021121 its reverse (1211201131223), we get a palindrome (4432512152344).

The spelling of 3221311021121 in words is "three trillion, two hundred twenty-one billion, three hundred eleven million, twenty-one thousand, one hundred twenty-one".