33121122160 has 80 divisors (see below), whose sum is σ = 88996536000. Its totient is φ = 11228203008.

The previous prime is 33121122143. The next prime is 33121122161. The reversal of 33121122160 is 6122112133.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33121122161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282435 + ... + 382114.

It is an arithmetic number, because the mean of its divisors is an integer number (1112456700).

Almost surely, 2^33121122160 is an apocalyptic number.

It is an amenable number.

33121122160 is an abundant number, since it is smaller than the sum of its proper divisors (55875413840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33121122160 is a wasteful number, since it uses less digits than its factorization.

33121122160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664658 (or 664652 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 33121122160 its reverse (6122112133), we get a palindrome (39243234293).

The spelling of 33121122160 in words is "thirty-three billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred sixty".