33224211020 has 96 divisors (see below), whose sum is σ = 93678391296. Its totient is φ = 9559008000.

The previous prime is 33224211019. The next prime is 33224211023. The reversal of 33224211020 is 2011242233.

It is a super-2 number, since 2×33224211020² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 33224210983 and 33224211001.

It is not an unprimeable number, because it can be changed into a prime (33224211023) 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, 809756 + ... + 849795.

It is an arithmetic number, because the mean of its divisors is an integer number (975816576).

Almost surely, 2^33224211020 is an apocalyptic number.

It is an amenable number.

33224211020 is an abundant number, since it is smaller than the sum of its proper divisors (60454180276).

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

33224211020 is a wasteful number, since it uses less digits than its factorization.

33224211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659591 (or 1659589 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 33224211020 its reverse (2011242233), we get a palindrome (35235453253).

The spelling of 33224211020 in words is "thirty-three billion, two hundred twenty-four million, two hundred eleven thousand, twenty".