221112122222227 has 2 divisors, whose sum is σ = 221112122222228. Its totient is φ = 221112122222226.

The previous prime is 221112122222209. The next prime is 221112122222317. The reversal of 221112122222227 is 722222221211122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221112122222227 - 2¹⁹ = 221112121697939 is a prime.

It is a super-2 number, since 2×221112122222227² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221112122222627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110556061111113 + 110556061111114.

It is an arithmetic number, because the mean of its divisors is an integer number (110556061111114).

Almost surely, 2^{221112122222227} is an apocalyptic number.

221112122222227 is a deficient number, since it is larger than the sum of its proper divisors (1).

221112122222227 is an equidigital number, since it uses as much as digits as its factorization.

221112122222227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7168, while the sum is 31.

Adding to 221112122222227 its reverse (722222221211122), we get a palindrome (943334343433349).

The spelling of 221112122222227 in words is "two hundred twenty-one trillion, one hundred twelve billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-seven".