12121023452050 has 12 divisors (see below), whose sum is σ = 22545103620906. Its totient is φ = 4848409380800.

The previous prime is 12121023452009. The next prime is 12121023452051. The reversal of 12121023452050 is 5025432012121.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6042693159721 + 6078330292329 = 2458189^2 + 2465427^2 .

It is not an unprimeable number, because it can be changed into a prime (12121023452051) 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 5 ways as a sum of consecutive naturals, for example, 121210234471 + ... + 121210234570.

Almost surely, 2^{12121023452050} is an apocalyptic number.

12121023452050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121023452050 is a deficient number, since it is larger than the sum of its proper divisors (10424080168856).

12121023452050 is a wasteful number, since it uses less digits than its factorization.

12121023452050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242420469053 (or 242420469048 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 12121023452050 its reverse (5025432012121), we get a palindrome (17146455464171).

The spelling of 12121023452050 in words is "twelve trillion, one hundred twenty-one billion, twenty-three million, four hundred fifty-two thousand, fifty".