12122051450 has 48 divisors (see below), whose sum is σ = 24033785400. Its totient is φ = 4532920320.

The previous prime is 12122051387. The next prime is 12122051453. The reversal of 12122051450 is 5415022121.

It can be written as a sum of positive squares in 12 ways, for example, as 475109209 + 11646942241 = 21797^2 + 107921^2 .

It is not an unprimeable number, because it can be changed into a prime (12122051453) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 78794 + ... + 174506.

Almost surely, 2^12122051450 is an apocalyptic number.

12122051450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12122051450 is a deficient number, since it is larger than the sum of its proper divisors (11911733950).

12122051450 is a wasteful number, since it uses less digits than its factorization.

12122051450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95891 (or 95886 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 12122051450 its reverse (5415022121), we get a palindrome (17537073571).

The spelling of 12122051450 in words is "twelve billion, one hundred twenty-two million, fifty-one thousand, four hundred fifty".