221210021222227 has 2 divisors, whose sum is σ = 221210021222228. Its totient is φ = 221210021222226.

The previous prime is 221210021222209. The next prime is 221210021222237. The reversal of 221210021222227 is 722222120012122.

221210021222227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221210021222227 - 2²⁷ = 221209887004499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221210021222195 and 221210021222204.

It is not a weakly prime, because it can be changed into another prime (221210021222237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110605010611113 + 110605010611114.

It is an arithmetic number, because the mean of its divisors is an integer number (110605010611114).

Almost surely, 2^{221210021222227} is an apocalyptic number.

221210021222227 is a deficient number, since it is larger than the sum of its proper divisors (1).

221210021222227 is an equidigital number, since it uses as much as digits as its factorization.

221210021222227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 28.

Adding to 221210021222227 its reverse (722222120012122), we get a palindrome (943432141234349).

The spelling of 221210021222227 in words is "two hundred twenty-one trillion, two hundred ten billion, twenty-one million, two hundred twenty-two thousand, two hundred twenty-seven".