121002231133212 has 192 divisors, whose sum is σ = 338696608771584. Its totient is φ = 33139446312960.

The previous prime is 121002231133163. The next prime is 121002231133219. The reversal of 121002231133212 is 212331132200121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002231133219) by changing a digit.

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, 13636363 + ... + 20687069.

It is an arithmetic number, because the mean of its divisors is an integer number (1764044837352).

Almost surely, 2^{121002231133212} is an apocalyptic number.

121002231133212 is a gapful number since it is divisible by the number (12) 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 121002231133212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169348304385792).

121002231133212 is an abundant number, since it is smaller than the sum of its proper divisors (217694377638372).

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

121002231133212 is a wasteful number, since it uses less digits than its factorization.

121002231133212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7050948 (or 7050946 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 121002231133212 its reverse (212331132200121), we get a palindrome (333333363333333).

The spelling of 121002231133212 in words is "one hundred twenty-one trillion, two billion, two hundred thirty-one million, one hundred thirty-three thousand, two hundred twelve".