13302231111220 has 12 divisors (see below), whose sum is σ = 27934685333604. Its totient is φ = 5320892444480.

The previous prime is 13302231111203. The next prime is 13302231111229. The reversal of 13302231111220 is 2211113220331.

It can be written as a sum of positive squares in 2 ways, for example, as 10551920650384 + 2750310460836 = 3248372^2 + 1658406^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13302231111191 and 13302231111200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13302231111229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332555777761 + ... + 332555777800.

It is an arithmetic number, because the mean of its divisors is an integer number (2327890444467).

Almost surely, 2^{13302231111220} is an apocalyptic number.

13302231111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13302231111220 is an abundant number, since it is smaller than the sum of its proper divisors (14632454222384).

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

13302231111220 is a wasteful number, since it uses less digits than its factorization.

13302231111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665111555570 (or 665111555568 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 13302231111220 its reverse (2211113220331), we get a palindrome (15513344331551).

Subtracting from 13302231111220 its reverse (2211113220331), we obtain a square (11091117890889 = 3330333²).

The spelling of 13302231111220 in words is "thirteen trillion, three hundred two billion, two hundred thirty-one million, one hundred eleven thousand, two hundred twenty".