121000210351140 has 192 divisors, whose sum is σ = 361797426192384. Its totient is φ = 30109328105472.

The previous prime is 121000210351099. The next prime is 121000210351171. The reversal of 121000210351140 is 41153012000121.

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 in 63 ways as a sum of consecutive naturals, for example, 193090402 + ... + 193716038.

It is an arithmetic number, because the mean of its divisors is an integer number (1884361594752).

Almost surely, 2^{121000210351140} is an apocalyptic number.

121000210351140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121000210351140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180898713096192).

121000210351140 is an abundant number, since it is smaller than the sum of its proper divisors (240797215841244).

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

121000210351140 is a wasteful number, since it uses less digits than its factorization.

121000210351140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627286 (or 627284 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 121000210351140 its reverse (41153012000121), we get a palindrome (162153222351261).

The spelling of 121000210351140 in words is "one hundred twenty-one trillion, two hundred ten million, three hundred fifty-one thousand, one hundred forty".