121201020003199 has 16 divisors (see below), whose sum is σ = 122285480601600. Its totient is φ = 120120263655840.

The previous prime is 121201020003157. The next prime is 121201020003229. The reversal of 121201020003199 is 991300020102121.

It is a cyclic number.

It is not a de Polignac number, because 121201020003199 - 2⁷ = 121201020003071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121201020003199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201020003299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404199922 + ... + 404499664.

It is an arithmetic number, because the mean of its divisors is an integer number (7642842537600).

Almost surely, 2^{121201020003199} is an apocalyptic number.

121201020003199 is a deficient number, since it is larger than the sum of its proper divisors (1084460598401).

121201020003199 is a wasteful number, since it uses less digits than its factorization.

121201020003199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305910.

The product of its (nonzero) digits is 1944, while the sum is 31.

The spelling of 121201020003199 in words is "one hundred twenty-one trillion, two hundred one billion, twenty million, three thousand, one hundred ninety-nine".