33522444420 has 96 divisors (see below), whose sum is σ = 98847907200. Its totient is φ = 8464978944.

The previous prime is 33522444367. The next prime is 33522444421. The reversal of 33522444420 is 2444422533.

It is a super-2 number, since 2×33522444420² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33522444421) 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, 3160486 + ... + 3171074.

It is an arithmetic number, because the mean of its divisors is an integer number (1029665700).

Almost surely, 2^33522444420 is an apocalyptic number.

33522444420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33522444420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49423953600).

33522444420 is an abundant number, since it is smaller than the sum of its proper divisors (65325462780).

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

33522444420 is a wasteful number, since it uses less digits than its factorization.

33522444420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13397 (or 13395 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 33.

Adding to 33522444420 its reverse (2444422533), we get a palindrome (35966866953).

The spelling of 33522444420 in words is "thirty-three billion, five hundred twenty-two million, four hundred forty-four thousand, four hundred twenty".