1272112266 has 8 divisors (see below), whose sum is σ = 2544224544. Its totient is φ = 424037420.

The previous prime is 1272112253. The next prime is 1272112277. The reversal of 1272112266 is 6622112721.

It is a sphenic number, since it is the product of 3 distinct primes.

1272112266 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106009350 + ... + 106009361.

It is an arithmetic number, because the mean of its divisors is an integer number (318028068).

Almost surely, 2^1272112266 is an apocalyptic number.

1272112266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1272112266 is a wasteful number, since it uses less digits than its factorization.

1272112266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212018716.

The product of its digits is 4032, while the sum is 30.

The square root of 1272112266 is about 35666.6828566941. The cubic root of 1272112266 is about 1083.5321784322.

Adding to 1272112266 its reverse (6622112721), we get a palindrome (7894224987).

The spelling of 1272112266 in words is "one billion, two hundred seventy-two million, one hundred twelve thousand, two hundred sixty-six".