10121221200499 has 2 divisors, whose sum is σ = 10121221200500. Its totient is φ = 10121221200498.

The previous prime is 10121221200469. The next prime is 10121221200619. The reversal of 10121221200499 is 99400212212101.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10121221200499 is a prime.

It is not a weakly prime, because it can be changed into another prime (10121221200469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060610600249 + 5060610600250.

It is an arithmetic number, because the mean of its divisors is an integer number (5060610600250).

Almost surely, 2^{10121221200499} is an apocalyptic number.

10121221200499 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121221200499 is an equidigital number, since it uses as much as digits as its factorization.

10121221200499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 10121221200499 in words is "ten trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred thousand, four hundred ninety-nine".