121101121121199 has 4 divisors (see below), whose sum is σ = 161468161494936. Its totient is φ = 80734080747464.

The previous prime is 121101121121191. The next prime is 121101121121209. The reversal of 121101121121199 is 991121121101121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121101121121199 - 2³ = 121101121121191 is a prime.

It is a super-2 number, since 2×121101121121199² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101121121191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20183520186864 + ... + 20183520186869.

It is an arithmetic number, because the mean of its divisors is an integer number (40367040373734).

Almost surely, 2^{121101121121199} is an apocalyptic number.

121101121121199 is a deficient number, since it is larger than the sum of its proper divisors (40367040373737).

121101121121199 is an equidigital number, since it uses as much as digits as its factorization.

121101121121199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40367040373736.

The product of its (nonzero) digits is 648, while the sum is 33.

The spelling of 121101121121199 in words is "one hundred twenty-one trillion, one hundred one billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred ninety-nine".