21214026550063 has 2 divisors, whose sum is σ = 21214026550064. Its totient is φ = 21214026550062.

The previous prime is 21214026550037. The next prime is 21214026550091. The reversal of 21214026550063 is 36005562041212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21214026550063 - 2³³ = 21205436615471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21214026550033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10607013275031 + 10607013275032.

It is an arithmetic number, because the mean of its divisors is an integer number (10607013275032).

Almost surely, 2^{21214026550063} is an apocalyptic number.

21214026550063 is a deficient number, since it is larger than the sum of its proper divisors (1).

21214026550063 is an equidigital number, since it uses as much as digits as its factorization.

21214026550063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 21214026550063 its reverse (36005562041212), we get a palindrome (57219588591275).

The spelling of 21214026550063 in words is "twenty-one trillion, two hundred fourteen billion, twenty-six million, five hundred fifty thousand, sixty-three".