3133321031221 has 4 divisors (see below), whose sum is σ = 3133554892000. Its totient is φ = 3133087170444.

The previous prime is 3133321031219. The next prime is 3133321031249. The reversal of 3133321031221 is 1221301233313.

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 not a de Polignac number, because 3133321031221 - 2¹ = 3133321031219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3133321031201) 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, 116910291 + ... + 116937088.

It is an arithmetic number, because the mean of its divisors is an integer number (783388723000).

Almost surely, 2^{3133321031221} is an apocalyptic number.

It is an amenable number.

3133321031221 is a deficient number, since it is larger than the sum of its proper divisors (233860779).

3133321031221 is a wasteful number, since it uses less digits than its factorization.

3133321031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233860778.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 3133321031221 its reverse (1221301233313), we get a palindrome (4354622264534).

The spelling of 3133321031221 in words is "three trillion, one hundred thirty-three billion, three hundred twenty-one million, thirty-one thousand, two hundred twenty-one".