121220101202199 has 16 divisors (see below), whose sum is σ = 167200758835200. Its totient is φ = 78026442826976.

The previous prime is 121220101202197. The next prime is 121220101202209. The reversal of 121220101202199 is 991202101022121.

It is a cyclic number.

It is not a de Polignac number, because 121220101202199 - 2¹ = 121220101202197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220101202197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22430722 + ... + 27305264.

It is an arithmetic number, because the mean of its divisors is an integer number (10450047427200).

Almost surely, 2^{121220101202199} is an apocalyptic number.

121220101202199 is a deficient number, since it is larger than the sum of its proper divisors (45980657633001).

121220101202199 is a wasteful number, since it uses less digits than its factorization.

121220101202199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5160414.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 121220101202199 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred one million, two hundred two thousand, one hundred ninety-nine".