21000112002227 has 2 divisors, whose sum is σ = 21000112002228. Its totient is φ = 21000112002226.

The previous prime is 21000112002217. The next prime is 21000112002239. The reversal of 21000112002227 is 72220021100012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21000112002227 - 2¹⁴ = 21000111985843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21000112002199 and 21000112002208.

It is not a weakly prime, because it can be changed into another prime (21000112002217) 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, 10500056001113 + 10500056001114.

It is an arithmetic number, because the mean of its divisors is an integer number (10500056001114).

Almost surely, 2^{21000112002227} is an apocalyptic number.

21000112002227 is a deficient number, since it is larger than the sum of its proper divisors (1).

21000112002227 is an equidigital number, since it uses as much as digits as its factorization.

21000112002227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 21000112002227 its reverse (72220021100012), we get a palindrome (93220133102239).

The spelling of 21000112002227 in words is "twenty-one trillion, one hundred twelve million, two thousand, two hundred twenty-seven".