33321220032 has 56 divisors (see below), whose sum is σ = 88449725056. Its totient is φ = 11070874368.

The previous prime is 33321220027. The next prime is 33321220057. The reversal of 33321220032 is 23002212333.

It is a super-2 number, since 2×33321220032² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33321219990 and 33321220008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223708 + ... + 341595.

It is an arithmetic number, because the mean of its divisors is an integer number (1579459376).

Almost surely, 2^33321220032 is an apocalyptic number.

33321220032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

33321220032 is an abundant number, since it is smaller than the sum of its proper divisors (55128505024).

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

33321220032 is a wasteful number, since it uses less digits than its factorization.

33321220032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565625 (or 565615 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 33321220032 its reverse (23002212333), we get a palindrome (56323432365).

The spelling of 33321220032 in words is "thirty-three billion, three hundred twenty-one million, two hundred twenty thousand, thirty-two".