21113120001227 has 2 divisors, whose sum is σ = 21113120001228. Its totient is φ = 21113120001226.

The previous prime is 21113120001203. The next prime is 21113120001251. The reversal of 21113120001227 is 72210002131112.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (21113120001203) and next prime (21113120001251).

It is a cyclic number.

It is not a de Polignac number, because 21113120001227 - 2¹² = 21113119997131 is a prime.

It is not a weakly prime, because it can be changed into another prime (21113120001527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556560000613 + 10556560000614.

It is an arithmetic number, because the mean of its divisors is an integer number (10556560000614).

Almost surely, 2^{21113120001227} is an apocalyptic number.

21113120001227 is a deficient number, since it is larger than the sum of its proper divisors (1).

21113120001227 is an equidigital number, since it uses as much as digits as its factorization.

21113120001227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 21113120001227 its reverse (72210002131112), we get a palindrome (93323122132339).

The spelling of 21113120001227 in words is "twenty-one trillion, one hundred thirteen billion, one hundred twenty million, one thousand, two hundred twenty-seven".