12201021120 has 56 divisors (see below), whose sum is σ = 38738245104. Its totient is φ = 3253605376.

The previous prime is 12201021109. The next prime is 12201021149. The reversal of 12201021120 is 2112010221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12201021096 and 12201021105.

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, 6353739 + ... + 6355658.

Almost surely, 2^12201021120 is an apocalyptic number.

12201021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201021120 is an abundant number, since it is smaller than the sum of its proper divisors (26537223984).

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

12201021120 is a wasteful number, since it uses less digits than its factorization.

12201021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12709417 (or 12709407 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12201021120 its reverse (2112010221), we get a palindrome (14313031341).

The spelling of 12201021120 in words is "twelve billion, two hundred one million, twenty-one thousand, one hundred twenty".