121000121199 has 12 divisors (see below), whose sum is σ = 174794409712. Its totient is φ = 80659152000.

The previous prime is 121000121197. The next prime is 121000121219. The reversal of 121000121199 is 991121000121.

It is not a de Polignac number, because 121000121199 - 2¹ = 121000121197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000121197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 531202 + ... + 723999.

Almost surely, 2^121000121199 is an apocalyptic number.

121000121199 is a deficient number, since it is larger than the sum of its proper divisors (53794288513).

121000121199 is a wasteful number, since it uses less digits than its factorization.

121000121199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265918 (or 1265915 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 121000121199 in words is "one hundred twenty-one billion, one hundred twenty-one thousand, one hundred ninety-nine".