12122122050 has 72 divisors (see below), whose sum is σ = 32748255540. Its totient is φ = 3214684800.

The previous prime is 12122122049. The next prime is 12122122081. The reversal of 12122122050 is 5022122121.

It can be written as a sum of positive squares in 6 ways, for example, as 772641 + 12121349409 = 879^2 + 110097^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7036 + ... + 155864.

Almost surely, 2^12122122050 is an apocalyptic number.

12122122050 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 12122122050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16374127770).

12122122050 is an abundant number, since it is smaller than the sum of its proper divisors (20626133490).

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

12122122050 is a wasteful number, since it uses less digits than its factorization.

12122122050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149028 (or 149020 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 12122122050 its reverse (5022122121), we get a palindrome (17144244171).

The spelling of 12122122050 in words is "twelve billion, one hundred twenty-two million, one hundred twenty-two thousand, fifty".