12201100120020 has 96 divisors (see below), whose sum is σ = 39045944464128. Its totient is φ = 2788649736192.

The previous prime is 12201100120003. The next prime is 12201100120081. The reversal of 12201100120020 is 2002100110221.

12201100120020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 12201100119978 and 12201100120005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5932572 + ... + 7719948.

It is an arithmetic number, because the mean of its divisors is an integer number (406728588168).

Almost surely, 2^{12201100120020} is an apocalyptic number.

12201100120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201100120020 is an abundant number, since it is smaller than the sum of its proper divisors (26844844344108).

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

12201100120020 is a wasteful number, since it uses less digits than its factorization.

12201100120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803649 (or 1803647 counting only the distinct ones).

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

Adding to 12201100120020 its reverse (2002100110221), we get a palindrome (14203200230241).

The spelling of 12201100120020 in words is "twelve trillion, two hundred one billion, one hundred million, one hundred twenty thousand, twenty".