33423042220 has 12 divisors (see below), whose sum is σ = 70188388704. Its totient is φ = 13369216880.

The previous prime is 33423042217. The next prime is 33423042221. The reversal of 33423042220 is 2224032433.

It is a super-2 number, since 2×33423042220² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33423042221) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 835576036 + ... + 835576075.

It is an arithmetic number, because the mean of its divisors is an integer number (5849032392).

Almost surely, 2^33423042220 is an apocalyptic number.

It is an amenable number.

33423042220 is an abundant number, since it is smaller than the sum of its proper divisors (36765346484).

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

33423042220 is a wasteful number, since it uses less digits than its factorization.

33423042220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671152120 (or 1671152118 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 33423042220 its reverse (2224032433), we get a palindrome (35647074653).

The spelling of 33423042220 in words is "thirty-three billion, four hundred twenty-three million, forty-two thousand, two hundred twenty".