33120223230 has 64 divisors (see below), whose sum is σ = 81158837760. Its totient is φ = 8648052864.

The previous prime is 33120223229. The next prime is 33120223237. The reversal of 33120223230 is 3232202133.

It is a junction number, because it is equal to n+sod(n) for n = 33120223197 and 33120223206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33120223237) 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, 286336 + ... + 385004.

It is an arithmetic number, because the mean of its divisors is an integer number (1268106840).

Almost surely, 2^33120223230 is an apocalyptic number.

33120223230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 33120223230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40579418880).

33120223230 is an abundant number, since it is smaller than the sum of its proper divisors (48038614530).

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

33120223230 is a wasteful number, since it uses less digits than its factorization.

33120223230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98913.

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

Adding to 33120223230 its reverse (3232202133), we get a palindrome (36352425363).

The spelling of 33120223230 in words is "thirty-three billion, one hundred twenty million, two hundred twenty-three thousand, two hundred thirty".