12227011057 has 4 divisors (see below), whose sum is σ = 12227497956. Its totient is φ = 12226524160.

The previous prime is 12227011003. The next prime is 12227011061. The reversal of 12227011057 is 75011072221.

12227011057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4967289441 + 7259721616 = 70479^2 + 85204^2 .

It is a cyclic number.

It is not a de Polignac number, because 12227011057 - 2¹¹ = 12227009009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12227011067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203608 + ... + 256729.

It is an arithmetic number, because the mean of its divisors is an integer number (3056874489).

Almost surely, 2^12227011057 is an apocalyptic number.

It is an amenable number.

12227011057 is a deficient number, since it is larger than the sum of its proper divisors (486899).

12227011057 is an equidigital number, since it uses as much as digits as its factorization.

12227011057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486898.

The product of its (nonzero) digits is 1960, while the sum is 28.

Adding to 12227011057 its reverse (75011072221), we get a palindrome (87238083278).

The spelling of 12227011057 in words is "twelve billion, two hundred twenty-seven million, eleven thousand, fifty-seven".