1228811707 has 2 divisors, whose sum is σ = 1228811708. Its totient is φ = 1228811706.

The previous prime is 1228811687. The next prime is 1228811713. The reversal of 1228811707 is 7071188221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1228811707 - 2¹⁵ = 1228778939 is a prime.

It is a super-2 number, since 2×1228811707² = 3019956422520507698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1228811747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614405853 + 614405854.

It is an arithmetic number, because the mean of its divisors is an integer number (614405854).

Almost surely, 2^1228811707 is an apocalyptic number.

1228811707 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228811707 is an equidigital number, since it uses as much as digits as its factorization.

1228811707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544, while the sum is 37.

The square root of 1228811707 is about 35054.4106639949. The cubic root of 1228811707 is about 1071.0961216187.

Adding to 1228811707 its reverse (7071188221), we get a palindrome (8299999928).

The spelling of 1228811707 in words is "one billion, two hundred twenty-eight million, eight hundred eleven thousand, seven hundred seven".