121121140112 has 80 divisors (see below), whose sum is σ = 291419443200. Its totient is φ = 47590623360.

The previous prime is 121121140111. The next prime is 121121140117. The reversal of 121121140112 is 211041121121.

It is not an unprimeable number, because it can be changed into a prime (121121140111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 852062 + ... + 983997.

It is an arithmetic number, because the mean of its divisors is an integer number (3642743040).

Almost surely, 2^121121140112 is an apocalyptic number.

It is an amenable number.

121121140112 is an abundant number, since it is smaller than the sum of its proper divisors (170298303088).

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

121121140112 is a wasteful number, since it uses less digits than its factorization.

121121140112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836124 (or 1836118 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121121140112 its reverse (211041121121), we get a palindrome (332162261233).

The spelling of 121121140112 in words is "one hundred twenty-one billion, one hundred twenty-one million, one hundred forty thousand, one hundred twelve".