12200120020100 has 18 divisors (see below), whose sum is σ = 26474260443834. Its totient is φ = 4880048008000.

The previous prime is 12200120020087. The next prime is 12200120020117. The reversal of 12200120020100 is 102002100221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2675946332224 + 9524173687876 = 1635832^2 + 3086126^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61000600001 + ... + 61000600200.

Almost surely, 2^{12200120020100} is an apocalyptic number.

12200120020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12200120020100 is an abundant number, since it is smaller than the sum of its proper divisors (14274140423734).

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

12200120020100 is a wasteful number, since it uses less digits than its factorization.

12200120020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122001200215 (or 122001200208 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12200120020100 its reverse (102002100221), we get a palindrome (12302122120321).

The spelling of 12200120020100 in words is "twelve trillion, two hundred billion, one hundred twenty million, twenty thousand, one hundred".