12201000020120 has 64 divisors (see below), whose sum is σ = 27619484820480. Its totient is φ = 4850675418496.

The previous prime is 12201000019987. The next prime is 12201000020173. The reversal of 12201000020120 is 2102000010221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68360837 + ... + 68539083.

It is an arithmetic number, because the mean of its divisors is an integer number (431554450320).

Almost surely, 2^{12201000020120} is an apocalyptic number.

12201000020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201000020120 is an abundant number, since it is smaller than the sum of its proper divisors (15418484800360).

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

12201000020120 is a wasteful number, since it uses less digits than its factorization.

12201000020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188672 (or 188668 counting only the distinct ones).

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

Adding to 12201000020120 its reverse (2102000010221), we get a palindrome (14303000030341).

The spelling of 12201000020120 in words is "twelve trillion, two hundred one billion, twenty thousand, one hundred twenty".