12221100111120 has 40 divisors (see below), whose sum is σ = 37885410345216. Its totient is φ = 3258960029568.

The previous prime is 12221100110993. The next prime is 12221100111131. The reversal of 12221100111120 is 2111100112221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12221100111120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25460624992 + ... + 25460625471.

Almost surely, 2^{12221100111120} is an apocalyptic number.

12221100111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221100111120 is an abundant number, since it is smaller than the sum of its proper divisors (25664310234096).

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

12221100111120 is a wasteful number, since it uses less digits than its factorization.

12221100111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50921250479 (or 50921250473 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12221100111120 its reverse (2111100112221), we get a palindrome (14332200223341).

The spelling of 12221100111120 in words is "twelve trillion, two hundred twenty-one billion, one hundred million, one hundred eleven thousand, one hundred twenty".