121232230112 has 48 divisors (see below), whose sum is σ = 282178481760. Its totient is φ = 50165058048.

The previous prime is 121232230081. The next prime is 121232230123. The reversal of 121232230112 is 211032232121.

It is a congruent number.

It is an unprimeable number.

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, 9324803 + ... + 9337794.

It is an arithmetic number, because the mean of its divisors is an integer number (5878718370).

Almost surely, 2^121232230112 is an apocalyptic number.

It is an amenable number.

121232230112 is an abundant number, since it is smaller than the sum of its proper divisors (160946251648).

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

121232230112 is a wasteful number, since it uses less digits than its factorization.

121232230112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18662643 (or 18662635 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121232230112 its reverse (211032232121), we get a palindrome (332264462233).

The spelling of 121232230112 in words is "one hundred twenty-one billion, two hundred thirty-two million, two hundred thirty thousand, one hundred twelve".