12121060050 has 144 divisors (see below), whose sum is σ = 36713171040. Its totient is φ = 2938399200.

The previous prime is 12121060043. The next prime is 12121060057. The reversal of 12121060050 is 5006012121.

12121060050 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 10 + 600 + 50 = 666.

12121060050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12121060043) and next prime (12121060057).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12121060057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 126249 + ... + 200451.

Almost surely, 2^12121060050 is an apocalyptic number.

12121060050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12121060050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18356585520).

12121060050 is an abundant number, since it is smaller than the sum of its proper divisors (24592110990).

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

12121060050 is a wasteful number, since it uses less digits than its factorization.

12121060050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74246 (or 74224 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 12121060050 its reverse (5006012121), we get a palindrome (17127072171).

The spelling of 12121060050 in words is "twelve billion, one hundred twenty-one million, sixty thousand, fifty".