1222227131 has 2 divisors, whose sum is σ = 1222227132. Its totient is φ = 1222227130.

The previous prime is 1222227113. The next prime is 1222227163. The reversal of 1222227131 is 1317222221.

Together with previous prime (1222227113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222227131 - 2²⁶ = 1155118267 is a prime.

It is a super-2 number, since 2×1222227131² = 2987678319504982322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222227097 and 1222227106.

It is not a weakly prime, because it can be changed into another prime (1222227431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611113565 + 611113566.

It is an arithmetic number, because the mean of its divisors is an integer number (611113566).

Almost surely, 2^1222227131 is an apocalyptic number.

1222227131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222227131 is an equidigital number, since it uses as much as digits as its factorization.

1222227131 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1222227131 is about 34960.3651439741. The cubic root of 1222227131 is about 1069.1795413670.

Adding to 1222227131 its reverse (1317222221), we get a palindrome (2539449352).

The spelling of 1222227131 in words is "one billion, two hundred twenty-two million, two hundred twenty-seven thousand, one hundred thirty-one".