121233312321112 has 32 divisors (see below), whose sum is σ = 228312675000000. Its totient is φ = 60350041470208.

The previous prime is 121233312321109. The next prime is 121233312321113. The reversal of 121233312321112 is 211123213332121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121233312321113) 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 7 ways as a sum of consecutive naturals, for example, 2069514 + ... + 15708262.

It is an arithmetic number, because the mean of its divisors is an integer number (7134771093750).

Almost surely, 2^{121233312321112} is an apocalyptic number.

It is an amenable number.

121233312321112 is a deficient number, since it is larger than the sum of its proper divisors (107079362678888).

121233312321112 is a wasteful number, since it uses less digits than its factorization.

121233312321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13643643 (or 13643639 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

Adding to 121233312321112 its reverse (211123213332121), we get a palindrome (332356525653233).

The spelling of 121233312321112 in words is "one hundred twenty-one trillion, two hundred thirty-three billion, three hundred twelve million, three hundred twenty-one thousand, one hundred twelve".