121332311112 has 32 divisors (see below), whose sum is σ = 303339422880. Its totient is φ = 40442951040.

The previous prime is 121332311099. The next prime is 121332311129. The reversal of 121332311112 is 211113233121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1408812 + ... + 1492452.

It is an arithmetic number, because the mean of its divisors is an integer number (9479356965).

Almost surely, 2^121332311112 is an apocalyptic number.

121332311112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121332311112 is an abundant number, since it is smaller than the sum of its proper divisors (182007111768).

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

121332311112 is a wasteful number, since it uses less digits than its factorization.

121332311112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144093 (or 144089 counting only the distinct ones).

The product of its digits is 216, while the sum is 21.

Adding to 121332311112 its reverse (211113233121), we get a palindrome (332445544233).

The spelling of 121332311112 in words is "one hundred twenty-one billion, three hundred thirty-two million, three hundred eleven thousand, one hundred twelve".