121211113232 has 160 divisors (see below), whose sum is σ = 268825651200. Its totient is φ = 52463552000.

The previous prime is 121211113217. The next prime is 121211113253. The reversal of 121211113232 is 232311112121.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 49291619 + ... + 49294077.

It is an arithmetic number, because the mean of its divisors is an integer number (1680160320).

Almost surely, 2^121211113232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121211113232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134412825600).

121211113232 is an abundant number, since it is smaller than the sum of its proper divisors (147614537968).

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

121211113232 is a wasteful number, since it uses less digits than its factorization.

121211113232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2685 (or 2679 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

Adding to 121211113232 its reverse (232311112121), we get a palindrome (353522225353).

The spelling of 121211113232 in words is "one hundred twenty-one billion, two hundred eleven million, one hundred thirteen thousand, two hundred thirty-two".