1212566468 has 6 divisors (see below), whose sum is σ = 2121991326. Its totient is φ = 606283232.

The previous prime is 1212566447. The next prime is 1212566477. The reversal of 1212566468 is 8646652121.

It can be written as a sum of positive squares in only one way, i.e., 1147312384 + 65254084 = 33872^2 + 8078^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151570805 + ... + 151570812.

It is an arithmetic number, because the mean of its divisors is an integer number (353665221).

Almost surely, 2^1212566468 is an apocalyptic number.

It is an amenable number.

1212566468 is a deficient number, since it is larger than the sum of its proper divisors (909424858).

1212566468 is a wasteful number, since it uses less digits than its factorization.

1212566468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303141621 (or 303141619 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 1212566468 is about 34821.9251047383. The cubic root of 1212566468 is about 1066.3551025367.

The spelling of 1212566468 in words is "one billion, two hundred twelve million, five hundred sixty-six thousand, four hundred sixty-eight".