33230013220 has 24 divisors (see below), whose sum is σ = 73887912504. Its totient is φ = 12510122496.

The previous prime is 33230013151. The next prime is 33230013221. The reversal of 33230013220 is 2231003233.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12968198884 + 20261814336 = 113878^2 + 142344^2 .

It is a super-2 number, since 2×33230013220² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33230013221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48867327 + ... + 48868006.

It is an arithmetic number, because the mean of its divisors is an integer number (3078663021).

Almost surely, 2^33230013220 is an apocalyptic number.

It is an amenable number.

33230013220 is an abundant number, since it is smaller than the sum of its proper divisors (40657899284).

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

33230013220 is a wasteful number, since it uses less digits than its factorization.

33230013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97735359 (or 97735357 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 33230013220 its reverse (2231003233), we get a palindrome (35461016453).

The spelling of 33230013220 in words is "thirty-three billion, two hundred thirty million, thirteen thousand, two hundred twenty".