121323133212 has 48 divisors (see below), whose sum is σ = 285743784480. Its totient is φ = 40061703168.

The previous prime is 121323133199. The next prime is 121323133219. The reversal of 121323133212 is 212331323121.

121323133212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121323133219) 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 15 ways as a sum of consecutive naturals, for example, 12333448 + ... + 12343280.

It is an arithmetic number, because the mean of its divisors is an integer number (5952995510).

Almost surely, 2^121323133212 is an apocalyptic number.

121323133212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121323133212 is an abundant number, since it is smaller than the sum of its proper divisors (164420651268).

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

121323133212 is a wasteful number, since it uses less digits than its factorization.

121323133212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19382 (or 19380 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

Adding to 121323133212 its reverse (212331323121), we get a palindrome (333654456333).

The spelling of 121323133212 in words is "one hundred twenty-one billion, three hundred twenty-three million, one hundred thirty-three thousand, two hundred twelve".