22021131227 has 2 divisors, whose sum is σ = 22021131228. Its totient is φ = 22021131226.

The previous prime is 22021131221. The next prime is 22021131239. The reversal of 22021131227 is 72213112022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22021131227 - 2¹² = 22021127131 is a prime.

It is not a weakly prime, because it can be changed into another prime (22021131221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010565613 + 11010565614.

It is an arithmetic number, because the mean of its divisors is an integer number (11010565614).

Almost surely, 2^22021131227 is an apocalyptic number.

22021131227 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021131227 is an equidigital number, since it uses as much as digits as its factorization.

22021131227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 22021131227 its reverse (72213112022), we get a palindrome (94234243249).

The spelling of 22021131227 in words is "twenty-two billion, twenty-one million, one hundred thirty-one thousand, two hundred twenty-seven".