12272777 has 16 divisors (see below), whose sum is σ = 14100480. Its totient is φ = 10573200.

The previous prime is 12272749. The next prime is 12272779. The reversal of 12272777 is 77727221.

It is not a de Polignac number, because 12272777 - 2¹² = 12268681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12272779) 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 15 ways as a sum of consecutive naturals, for example, 45152 + ... + 45422.

It is an arithmetic number, because the mean of its divisors is an integer number (881280).

Almost surely, 2^12272777 is an apocalyptic number.

It is an amenable number.

12272777 is a deficient number, since it is larger than the sum of its proper divisors (1827703).

12272777 is a wasteful number, since it uses less digits than its factorization.

12272777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484.

The product of its digits is 19208, while the sum is 35.

The square root of 12272777 is about 3503.2523460350. The cubic root of 12272777 is about 230.6645994873.

Adding to 12272777 its reverse (77727221), we get a palindrome (89999998).

It can be divided in two parts, 1227 and 2777, that added together give a palindrome (4004).

The spelling of 12272777 in words is "twelve million, two hundred seventy-two thousand, seven hundred seventy-seven".