22220121227 has 2 divisors, whose sum is σ = 22220121228. Its totient is φ = 22220121226.

The previous prime is 22220121179. The next prime is 22220121277. The reversal of 22220121227 is 72212102222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22220121227 - 2¹⁴ = 22220104843 is a prime.

It is not a weakly prime, because it can be changed into another prime (22220121277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110060613 + 11110060614.

It is an arithmetic number, because the mean of its divisors is an integer number (11110060614).

Almost surely, 2^22220121227 is an apocalyptic number.

22220121227 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220121227 is an equidigital number, since it uses as much as digits as its factorization.

22220121227 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 22220121227 its reverse (72212102222), we get a palindrome (94432223449).

The spelling of 22220121227 in words is "twenty-two billion, two hundred twenty million, one hundred twenty-one thousand, two hundred twenty-seven".