1222231427 has 2 divisors, whose sum is σ = 1222231428. Its totient is φ = 1222231426.

The previous prime is 1222231399. The next prime is 1222231429. The reversal of 1222231427 is 7241322221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222231427 - 2¹⁶ = 1222165891 is a prime.

It is a super-2 number, since 2×1222231427² = 2987699322292912658, which contains 22 as substring.

Together with 1222231429, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222231396 and 1222231405.

It is not a weakly prime, because it can be changed into another prime (1222231429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611115713 + 611115714.

It is an arithmetic number, because the mean of its divisors is an integer number (611115714).

Almost surely, 2^1222231427 is an apocalyptic number.

1222231427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222231427 is an equidigital number, since it uses as much as digits as its factorization.

1222231427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 26.

The square root of 1222231427 is about 34960.4265849260. The cubic root of 1222231427 is about 1069.1807940501.

Adding to 1222231427 its reverse (7241322221), we get a palindrome (8463553648).

The spelling of 1222231427 in words is "one billion, two hundred twenty-two million, two hundred thirty-one thousand, four hundred twenty-seven".