12127220762 has 4 divisors (see below), whose sum is σ = 18190831146. Its totient is φ = 6063610380.

The previous prime is 12127220737. The next prime is 12127220767. The reversal of 12127220762 is 26702272121.

12127220762 is digitally balanced in base 2 and base 5, because in such bases 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 only one way, i.e., 10722395401 + 1404825361 = 103549^2 + 37481^2 .

It is not an unprimeable number, because it can be changed into a prime (12127220767) 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 as a sum of consecutive naturals, namely, 3031805189 + ... + 3031805192.

Almost surely, 2^12127220762 is an apocalyptic number.

12127220762 is a deficient number, since it is larger than the sum of its proper divisors (6063610384).

12127220762 is an equidigital number, since it uses as much as digits as its factorization.

12127220762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6063610383.

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

Adding to 12127220762 its reverse (26702272121), we get a palindrome (38829492883).

The spelling of 12127220762 in words is "twelve billion, one hundred twenty-seven million, two hundred twenty thousand, seven hundred sixty-two".