21250226041063 has 4 divisors (see below), whose sum is σ = 21250235266560. Its totient is φ = 21250216815568.

The previous prime is 21250226041049. The next prime is 21250226041067. The reversal of 21250226041063 is 36014062205212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21250226041063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21250226041067) 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 in 3 ways as a sum of consecutive naturals, for example, 2058906 + ... + 6836632.

It is an arithmetic number, because the mean of its divisors is an integer number (5312558816640).

Almost surely, 2^{21250226041063} is an apocalyptic number.

21250226041063 is a deficient number, since it is larger than the sum of its proper divisors (9225497).

21250226041063 is an equidigital number, since it uses as much as digits as its factorization.

21250226041063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9225496.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 21250226041063 its reverse (36014062205212), we get a palindrome (57264288246275).

The spelling of 21250226041063 in words is "twenty-one trillion, two hundred fifty billion, two hundred twenty-six million, forty-one thousand, sixty-three".