222221121220027 has 2 divisors, whose sum is σ = 222221121220028. Its totient is φ = 222221121220026.

The previous prime is 222221121220019. The next prime is 222221121220121. The reversal of 222221121220027 is 720022121122222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222221121220027 - 2³ = 222221121220019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222221121219977 and 222221121220004.

It is not a weakly prime, because it can be changed into another prime (222221121320027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110560610013 + 111110560610014.

It is an arithmetic number, because the mean of its divisors is an integer number (111110560610014).

Almost surely, 2^{222221121220027} is an apocalyptic number.

222221121220027 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221121220027 is an equidigital number, since it uses as much as digits as its factorization.

222221121220027 is an odious number, because the sum of its binary digits is odd.

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

Adding to 222221121220027 its reverse (720022121122222), we get a palindrome (942243242342249).

The spelling of 222221121220027 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred twenty thousand, twenty-seven".