21214025126299 has 2 divisors, whose sum is σ = 21214025126300. Its totient is φ = 21214025126298.

The previous prime is 21214025126207. The next prime is 21214025126309. The reversal of 21214025126299 is 99262152041212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21214025126299 - 2²³ = 21214016737691 is a prime.

It is not a weakly prime, because it can be changed into another prime (21214025426299) 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, 10607012563149 + 10607012563150.

It is an arithmetic number, because the mean of its divisors is an integer number (10607012563150).

Almost surely, 2^{21214025126299} is an apocalyptic number.

21214025126299 is a deficient number, since it is larger than the sum of its proper divisors (1).

21214025126299 is an equidigital number, since it uses as much as digits as its factorization.

21214025126299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 21214025126299 in words is "twenty-one trillion, two hundred fourteen billion, twenty-five million, one hundred twenty-six thousand, two hundred ninety-nine".