13232221020 has 48 divisors (see below), whose sum is σ = 41166911520. Its totient is φ = 3528592128.

The previous prime is 13232221003. The next prime is 13232221021. The reversal of 13232221020 is 2012223231.

13232221020 is a `hidden beast` number, since 132 + 322 + 210 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13232220984 and 13232221002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13232221021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12251517 + ... + 12252596.

It is an arithmetic number, because the mean of its divisors is an integer number (857643990).

Almost surely, 2^13232221020 is an apocalyptic number.

13232221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13232221020 is an abundant number, since it is smaller than the sum of its proper divisors (27934690500).

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

13232221020 is a wasteful number, since it uses less digits than its factorization.

13232221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24504131 (or 24504123 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13232221020 its reverse (2012223231), we get a palindrome (15244444251).

The spelling of 13232221020 in words is "thirteen billion, two hundred thirty-two million, two hundred twenty-one thousand, twenty".