33033213121220 has 96 divisors (see below), whose sum is σ = 75868141079808. Its totient is φ = 12007348987392.

The previous prime is 33033213121201. The next prime is 33033213121379. The reversal of 33033213121220 is 2212131233033.

It is a super-2 number, since 2×33033213121220² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 33033213121220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27403934 + ... + 28583946.

It is an arithmetic number, because the mean of its divisors is an integer number (790293136248).

Almost surely, 2^{33033213121220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33033213121220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37934070539904).

33033213121220 is an abundant number, since it is smaller than the sum of its proper divisors (42834927958588).

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

33033213121220 is a wasteful number, since it uses less digits than its factorization.

33033213121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181709 (or 1181707 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 33033213121220 its reverse (2212131233033), we get a palindrome (35245344354253).

The spelling of 33033213121220 in words is "thirty-three trillion, thirty-three billion, two hundred thirteen million, one hundred twenty-one thousand, two hundred twenty".