21254250401227 has 2 divisors, whose sum is σ = 21254250401228. Its totient is φ = 21254250401226.

The previous prime is 21254250401207. The next prime is 21254250401233. The reversal of 21254250401227 is 72210405245212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21254250401227 - 2¹⁵ = 21254250368459 is a prime.

It is not a weakly prime, because it can be changed into another prime (21254250401207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10627125200613 + 10627125200614.

It is an arithmetic number, because the mean of its divisors is an integer number (10627125200614).

Almost surely, 2^{21254250401227} is an apocalyptic number.

21254250401227 is a deficient number, since it is larger than the sum of its proper divisors (1).

21254250401227 is an equidigital number, since it uses as much as digits as its factorization.

21254250401227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 89600, while the sum is 37.

Adding to 21254250401227 its reverse (72210405245212), we get a palindrome (93464655646439).

The spelling of 21254250401227 in words is "twenty-one trillion, two hundred fifty-four billion, two hundred fifty million, four hundred one thousand, two hundred twenty-seven".