33000033220 has 96 divisors (see below), whose sum is σ = 89379521280. Its totient is φ = 9931031040.

The previous prime is 33000033197. The next prime is 33000033251. The reversal of 33000033220 is 2233000033.

It is a happy number.

It is a super-2 number, since 2×33000033220² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33000033194 and 33000033203.

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, 324799 + ... + 414118.

It is an arithmetic number, because the mean of its divisors is an integer number (931036680).

Almost surely, 2^33000033220 is an apocalyptic number.

It is an amenable number.

33000033220 is an abundant number, since it is smaller than the sum of its proper divisors (56379488060).

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

33000033220 is a wasteful number, since it uses less digits than its factorization.

33000033220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738973 (or 738971 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 16.

Adding to 33000033220 its reverse (2233000033), we get a palindrome (35233033253).

The spelling of 33000033220 in words is "thirty-three billion, thirty-three thousand, two hundred twenty".