3133120122221 has 4 divisors (see below), whose sum is σ = 3145033126752. Its totient is φ = 3121207117692.

The previous prime is 3133120122199. The next prime is 3133120122247. The reversal of 3133120122221 is 1222210213313.

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-3133120122221 is a prime.

It is a super-2 number, since 2×3133120122221² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3133120122421) 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, 5956501871 + ... + 5956502396.

It is an arithmetic number, because the mean of its divisors is an integer number (786258281688).

Almost surely, 2^{3133120122221} is an apocalyptic number.

It is an amenable number.

3133120122221 is a deficient number, since it is larger than the sum of its proper divisors (11913004531).

3133120122221 is a wasteful number, since it uses less digits than its factorization.

3133120122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11913004530.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 3133120122221 its reverse (1222210213313), we get a palindrome (4355330335534).

The spelling of 3133120122221 in words is "three trillion, one hundred thirty-three billion, one hundred twenty million, one hundred twenty-two thousand, two hundred twenty-one".