13211122321100 has 108 divisors (see below), whose sum is σ = 31513429568712. Its totient is φ = 4803713164800.

The previous prime is 13211122321099. The next prime is 13211122321127. The reversal of 13211122321100 is 112322111231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 237168452 + ... + 237224148.

Almost surely, 2^{13211122321100} is an apocalyptic number.

13211122321100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13211122321100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15756714784356).

13211122321100 is an abundant number, since it is smaller than the sum of its proper divisors (18302307247612).

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

13211122321100 is a wasteful number, since it uses less digits than its factorization.

13211122321100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75336 (or 75318 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 13211122321100 its reverse (112322111231), we get a palindrome (13323444432331).

The spelling of 13211122321100 in words is "thirteen trillion, two hundred eleven billion, one hundred twenty-two million, three hundred twenty-one thousand, one hundred".