33221113420 has 96 divisors (see below), whose sum is σ = 78643353600. Its totient is φ = 11678553600.

The previous prime is 33221113411. The next prime is 33221113463. The reversal of 33221113420 is 2431112233.

It is a super-2 number, since 2×33221113420² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 33221113391 and 33221113400.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 8789091 + ... + 8792869.

It is an arithmetic number, because the mean of its divisors is an integer number (819201600).

Almost surely, 2^33221113420 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 33221113420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39321676800).

33221113420 is an abundant number, since it is smaller than the sum of its proper divisors (45422240180).

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

33221113420 is a wasteful number, since it uses less digits than its factorization.

33221113420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5119 (or 5117 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 33221113420 its reverse (2431112233), we get a palindrome (35652225653).

It can be divided in two parts, 33221 and 113420, that added together give a palindrome (146641).

The spelling of 33221113420 in words is "thirty-three billion, two hundred twenty-one million, one hundred thirteen thousand, four hundred twenty".