221222120027 has 2 divisors, whose sum is σ = 221222120028. Its totient is φ = 221222120026.

The previous prime is 221222120017. The next prime is 221222120057. The reversal of 221222120027 is 720021222122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221222120027 - 2¹⁶ = 221222054491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221222119984 and 221222120011.

It is not a weakly prime, because it can be changed into another prime (221222120017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110611060013 + 110611060014.

It is an arithmetic number, because the mean of its divisors is an integer number (110611060014).

Almost surely, 2^221222120027 is an apocalyptic number.

221222120027 is a deficient number, since it is larger than the sum of its proper divisors (1).

221222120027 is an equidigital number, since it uses as much as digits as its factorization.

221222120027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

Adding to 221222120027 its reverse (720021222122), we get a palindrome (941243342149).

The spelling of 221222120027 in words is "two hundred twenty-one billion, two hundred twenty-two million, one hundred twenty thousand, twenty-seven".