12211303312120 has 64 divisors (see below), whose sum is σ = 30157083872640. Its totient is φ = 4413231734400.

The previous prime is 12211303312111. The next prime is 12211303312133. The reversal of 12211303312120 is 2121330311221.

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

It is a junction number, because it is equal to n+sod(n) for n = 12211303312091 and 12211303312100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85060066 + ... + 85203505.

It is an arithmetic number, because the mean of its divisors is an integer number (471204435510).

Almost surely, 2^{12211303312120} is an apocalyptic number.

12211303312120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211303312120 is an abundant number, since it is smaller than the sum of its proper divisors (17945780560520).

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

12211303312120 is a wasteful number, since it uses less digits than its factorization.

12211303312120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170263756 (or 170263752 counting only the distinct ones).

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

Adding to 12211303312120 its reverse (2121330311221), we get a palindrome (14332633623341).

The spelling of 12211303312120 in words is "twelve trillion, two hundred eleven billion, three hundred three million, three hundred twelve thousand, one hundred twenty".