12201122120 has 96 divisors (see below), whose sum is σ = 30687249600. Its totient is φ = 4361470080.

The previous prime is 12201122117. The next prime is 12201122159. The reversal of 12201122120 is 2122110221.

It is a junction number, because it is equal to n+sod(n) for n = 12201122095 and 12201122104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264197 + ... + 306923.

It is an arithmetic number, because the mean of its divisors is an integer number (319658850).

Almost surely, 2^12201122120 is an apocalyptic number.

12201122120 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 12201122120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15343624800).

12201122120 is an abundant number, since it is smaller than the sum of its proper divisors (18486127480).

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

12201122120 is a wasteful number, since it uses less digits than its factorization.

12201122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42819 (or 42804 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12201122120 its reverse (2122110221), we get a palindrome (14323232341).

The spelling of 12201122120 in words is "twelve billion, two hundred one million, one hundred twenty-two thousand, one hundred twenty".