13221330222100 has 144 divisors (see below), whose sum is σ = 38521224233856. Its totient is φ = 3803939136000.

The previous prime is 13221330222017. The next prime is 13221330222119. The reversal of 13221330222100 is 122203312231.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65940511 + ... + 66140710.

It is an arithmetic number, because the mean of its divisors is an integer number (267508501624).

Almost surely, 2^{13221330222100} is an apocalyptic number.

13221330222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13221330222100 is an abundant number, since it is smaller than the sum of its proper divisors (25299894011756).

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

13221330222100 is a wasteful number, since it uses less digits than its factorization.

13221330222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132081266 (or 132081259 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13221330222100 its reverse (122203312231), we get a palindrome (13343533534331).

The spelling of 13221330222100 in words is "thirteen trillion, two hundred twenty-one billion, three hundred thirty million, two hundred twenty-two thousand, one hundred".