121334435412 has 24 divisors (see below), whose sum is σ = 283137691200. Its totient is φ = 40441382016.

The previous prime is 121334435377. The next prime is 121334435413. The reversal of 121334435412 is 214534433121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121334435413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279237 + ... + 566252.

It is an arithmetic number, because the mean of its divisors is an integer number (11797403800).

Almost surely, 2^121334435412 is an apocalyptic number.

121334435412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121334435412 is an abundant number, since it is smaller than the sum of its proper divisors (161803255788).

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

121334435412 is a wasteful number, since it uses less digits than its factorization.

121334435412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857455 (or 857453 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

Adding to 121334435412 its reverse (214534433121), we get a palindrome (335868868533).

The spelling of 121334435412 in words is "one hundred twenty-one billion, three hundred thirty-four million, four hundred thirty-five thousand, four hundred twelve".