1227115668 has 24 divisors (see below), whose sum is σ = 2924191872. Its totient is φ = 400335424.

The previous prime is 1227115667. The next prime is 1227115679. The reversal of 1227115668 is 8665117221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227115667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1087305 + ... + 1088432.

It is an arithmetic number, because the mean of its divisors is an integer number (121841328).

Almost surely, 2^1227115668 is an apocalyptic number.

It is an amenable number.

1227115668 is an abundant number, since it is smaller than the sum of its proper divisors (1697076204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1227115668 is a wasteful number, since it uses less digits than its factorization.

1227115668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175791 (or 2175789 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 1227115668 is about 35030.2107901166. The cubic root of 1227115668 is about 1070.6031094919.

The spelling of 1227115668 in words is "one billion, two hundred twenty-seven million, one hundred fifteen thousand, six hundred sixty-eight".