121440122312 has 32 divisors (see below), whose sum is σ = 228030940800. Its totient is φ = 60631940544.

The previous prime is 121440122261. The next prime is 121440122327. The reversal of 121440122312 is 213221044121.

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, 27208193 + ... + 27212655.

It is an arithmetic number, because the mean of its divisors is an integer number (7125966900).

Almost surely, 2^121440122312 is an apocalyptic number.

It is an amenable number.

121440122312 is a deficient number, since it is larger than the sum of its proper divisors (106590818488).

121440122312 is a wasteful number, since it uses less digits than its factorization.

121440122312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8645 (or 8641 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 121440122312 its reverse (213221044121), we get a palindrome (334661166433).

The spelling of 121440122312 in words is "one hundred twenty-one billion, four hundred forty million, one hundred twenty-two thousand, three hundred twelve".