33112122011221 has 32 divisors (see below), whose sum is σ = 39731846305536. Its totient is φ = 27250922496000.

The previous prime is 33112122011197. The next prime is 33112122011249. The reversal of 33112122011221 is 12211022121133.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 33112122011221 - 2¹⁹ = 33112121486933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33112122011192 and 33112122011201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33112122011921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29869620 + ... + 30958333.

It is an arithmetic number, because the mean of its divisors is an integer number (1241620197048).

Almost surely, 2^{33112122011221} is an apocalyptic number.

It is an amenable number.

33112122011221 is a deficient number, since it is larger than the sum of its proper divisors (6619724294315).

33112122011221 is a wasteful number, since it uses less digits than its factorization.

33112122011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60828093.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 33112122011221 its reverse (12211022121133), we get a palindrome (45323144132354).

The spelling of 33112122011221 in words is "thirty-three trillion, one hundred twelve billion, one hundred twenty-two million, eleven thousand, two hundred twenty-one".