13212213121200 has 60 divisors (see below), whose sum is σ = 42323122702088. Its totient is φ = 3523256832000.

The previous prime is 13212213121189. The next prime is 13212213121337. The reversal of 13212213121200 is 212131221231.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5505087601 + ... + 5505090000.

Almost surely, 2^{13212213121200} is an apocalyptic number.

13212213121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13212213121200 is an abundant number, since it is smaller than the sum of its proper divisors (29110909580888).

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

13212213121200 is a wasteful number, since it uses less digits than its factorization.

13212213121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11010177622 (or 11010177611 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 13212213121200 its reverse (212131221231), we get a palindrome (13424344342431).

The spelling of 13212213121200 in words is "thirteen trillion, two hundred twelve billion, two hundred thirteen million, one hundred twenty-one thousand, two hundred".