13331222220 has 48 divisors (see below), whose sum is σ = 37472708448. Its totient is φ = 3541155840.

The previous prime is 13331222213. The next prime is 13331222239. The reversal of 13331222220 is 2222213331.

It is a happy number.

13331222220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 416851 + ... + 447690.

It is an arithmetic number, because the mean of its divisors is an integer number (780681426).

Almost surely, 2^13331222220 is an apocalyptic number.

13331222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13331222220 is an abundant number, since it is smaller than the sum of its proper divisors (24141486228).

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

13331222220 is a wasteful number, since it uses less digits than its factorization.

13331222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864810 (or 864808 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13331222220 its reverse (2222213331), we get a palindrome (15553435551).

The spelling of 13331222220 in words is "thirteen billion, three hundred thirty-one million, two hundred twenty-two thousand, two hundred twenty".