13311120220 has 24 divisors (see below), whose sum is σ = 27992260800. Its totient is φ = 5317036992.

The previous prime is 13311120197. The next prime is 13311120223. The reversal of 13311120220 is 2202111331.

It is a super-2 number, since 2×13311120220² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13311120194 and 13311120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311120223) 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, 448455 + ... + 477214.

It is an arithmetic number, because the mean of its divisors is an integer number (1166344200).

Almost surely, 2^13311120220 is an apocalyptic number.

13311120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13311120220 is an abundant number, since it is smaller than the sum of its proper divisors (14681140580).

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

13311120220 is a wasteful number, since it uses less digits than its factorization.

13311120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926397 (or 926395 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13311120220 its reverse (2202111331), we get a palindrome (15513231551).

The spelling of 13311120220 in words is "thirteen billion, three hundred eleven million, one hundred twenty thousand, two hundred twenty".