1223111027 has 2 divisors, whose sum is σ = 1223111028. Its totient is φ = 1223111026.

The previous prime is 1223111017. The next prime is 1223111041. The reversal of 1223111027 is 7201113221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223111027 - 2⁴ = 1223111011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223111017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611555513 + 611555514.

It is an arithmetic number, because the mean of its divisors is an integer number (611555514).

Almost surely, 2^1223111027 is an apocalyptic number.

1223111027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223111027 is an equidigital number, since it uses as much as digits as its factorization.

1223111027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1223111027 is about 34973.0042604292. The cubic root of 1223111027 is about 1069.4372173678.

Adding to 1223111027 its reverse (7201113221), we get a palindrome (8424224248).

The spelling of 1223111027 in words is "one billion, two hundred twenty-three million, one hundred eleven thousand, twenty-seven".