13233221020 has 24 divisors (see below), whose sum is σ = 27909043344. Its totient is φ = 5270568576.

The previous prime is 13233221017. The next prime is 13233221021. The reversal of 13233221020 is 2012233231.

13233221020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13233221021) 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 7 ways as a sum of consecutive naturals, for example, 1415214 + ... + 1424533.

It is an arithmetic number, because the mean of its divisors is an integer number (1162876806).

Almost surely, 2^13233221020 is an apocalyptic number.

13233221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13233221020 is an abundant number, since it is smaller than the sum of its proper divisors (14675822324).

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

13233221020 is a wasteful number, since it uses less digits than its factorization.

13233221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839989 (or 2839987 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13233221020 its reverse (2012233231), we get a palindrome (15245454251).

The spelling of 13233221020 in words is "thirteen billion, two hundred thirty-three million, two hundred twenty-one thousand, twenty".