121210550196 has 12 divisors (see below), whose sum is σ = 282824617152. Its totient is φ = 40403516728.

The previous prime is 121210550191. The next prime is 121210550231. The reversal of 121210550196 is 691055012121.

121210550196 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121210550191) 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, 5050439580 + ... + 5050439603.

It is an arithmetic number, because the mean of its divisors is an integer number (23568718096).

Almost surely, 2^121210550196 is an apocalyptic number.

It is an amenable number.

121210550196 is an abundant number, since it is smaller than the sum of its proper divisors (161614066956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121210550196 is a wasteful number, since it uses less digits than its factorization.

121210550196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100879190 (or 10100879188 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 33.

The spelling of 121210550196 in words is "one hundred twenty-one billion, two hundred ten million, five hundred fifty thousand, one hundred ninety-six".