121950286196 has 6 divisors (see below), whose sum is σ = 213413000850. Its totient is φ = 60975143096.

The previous prime is 121950286187. The next prime is 121950286201. The reversal of 121950286196 is 691682059121.

It can be written as a sum of positive squares in only one way, i.e., 72341633296 + 49608652900 = 268964^2 + 222730^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15243785771 + ... + 15243785778.

It is an arithmetic number, because the mean of its divisors is an integer number (35568833475).

Almost surely, 2^121950286196 is an apocalyptic number.

It is an amenable number.

121950286196 is a deficient number, since it is larger than the sum of its proper divisors (91462714654).

121950286196 is a wasteful number, since it uses less digits than its factorization.

121950286196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30487571553 (or 30487571551 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 121950286196 in words is "one hundred twenty-one billion, nine hundred fifty million, two hundred eighty-six thousand, one hundred ninety-six".