12200121009999 has 96 divisors (see below), whose sum is σ = 20498497044480. Its totient is φ = 6929466534144.

The previous prime is 12200121009991. The next prime is 12200121010067. The reversal of 12200121009999 is 99990012100221.

12200121009999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12200121009999 - 2³ = 12200121009991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200121009991) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 129731854 + ... + 129825860.

It is an arithmetic number, because the mean of its divisors is an integer number (213526010880).

Almost surely, 2^{12200121009999} is an apocalyptic number.

12200121009999 is a deficient number, since it is larger than the sum of its proper divisors (8298376034481).

12200121009999 is a wasteful number, since it uses less digits than its factorization.

12200121009999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95741 (or 95738 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The spelling of 12200121009999 in words is "twelve trillion, two hundred billion, one hundred twenty-one million, nine thousand, nine hundred ninety-nine".