12271220627 has 4 divisors (see below), whose sum is σ = 12293017320. Its totient is φ = 12249423936.

The previous prime is 12271220617. The next prime is 12271220629. The reversal of 12271220627 is 72602217221.

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

It is a cyclic number.

It is not a de Polignac number, because 12271220627 - 2¹⁴ = 12271204243 is a prime.

It is a super-3 number, since 3×12271220627³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12271220593 and 12271220602.

It is not an unprimeable number, because it can be changed into a prime (12271220629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10897502 + ... + 10898627.

It is an arithmetic number, because the mean of its divisors is an integer number (3073254330).

Almost surely, 2^12271220627 is an apocalyptic number.

12271220627 is a deficient number, since it is larger than the sum of its proper divisors (21796693).

12271220627 is an equidigital number, since it uses as much as digits as its factorization.

12271220627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21796692.

The product of its (nonzero) digits is 9408, while the sum is 32.

Adding to 12271220627 its reverse (72602217221), we get a palindrome (84873437848).

The spelling of 12271220627 in words is "twelve billion, two hundred seventy-one million, two hundred twenty thousand, six hundred twenty-seven".