121297937196 has 12 divisors (see below), whose sum is σ = 283028520152. Its totient is φ = 40432645728.

The previous prime is 121297937179. The next prime is 121297937197. The reversal of 121297937196 is 691739792121.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (121297937197) 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, 5054080705 + ... + 5054080728.

Almost surely, 2^121297937196 is an apocalyptic number.

It is an amenable number.

121297937196 is an abundant number, since it is smaller than the sum of its proper divisors (161730582956).

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

121297937196 is a wasteful number, since it uses less digits than its factorization.

121297937196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10108161440 (or 10108161438 counting only the distinct ones).

The product of its digits is 2571912, while the sum is 57.

The spelling of 121297937196 in words is "one hundred twenty-one billion, two hundred ninety-seven million, nine hundred thirty-seven thousand, one hundred ninety-six".