33211022221121 has 2 divisors, whose sum is σ = 33211022221122. Its totient is φ = 33211022221120.

The previous prime is 33211022221109. The next prime is 33211022221147. The reversal of 33211022221121 is 12112222011233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26767999488400 + 6443022732721 = 5173780^2 + 2538311^2 .

It is an emirp because it is prime and its reverse (12112222011233) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33211022221121 is a prime.

It is a super-2 number, since 2×33211022221121² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33211022221721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16605511110560 + 16605511110561.

It is an arithmetic number, because the mean of its divisors is an integer number (16605511110561).

Almost surely, 2^{33211022221121} is an apocalyptic number.

It is an amenable number.

33211022221121 is a deficient number, since it is larger than the sum of its proper divisors (1).

33211022221121 is an equidigital number, since it uses as much as digits as its factorization.

33211022221121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 33211022221121 its reverse (12112222011233), we get a palindrome (45323244232354).

The spelling of 33211022221121 in words is "thirty-three trillion, two hundred eleven billion, twenty-two million, two hundred twenty-one thousand, one hundred twenty-one".