121340225212 has 24 divisors (see below), whose sum is σ = 213022157040. Its totient is φ = 60477018240.

The previous prime is 121340225207. The next prime is 121340225231. The reversal of 121340225212 is 212522043121.

121340225212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1830162 + ... + 1895302.

It is an arithmetic number, because the mean of its divisors is an integer number (8875923210).

Almost surely, 2^121340225212 is an apocalyptic number.

It is an amenable number.

121340225212 is a deficient number, since it is larger than the sum of its proper divisors (91681931828).

121340225212 is a wasteful number, since it uses less digits than its factorization.

121340225212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66621 (or 66619 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 121340225212 its reverse (212522043121), we get a palindrome (333862268333).

The spelling of 121340225212 in words is "one hundred twenty-one billion, three hundred forty million, two hundred twenty-five thousand, two hundred twelve".