12202428757 has 4 divisors (see below), whose sum is σ = 12204452736. Its totient is φ = 12200404780.

The previous prime is 12202428743. The next prime is 12202428761. The reversal of 12202428757 is 75782420221.

12202428757 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12202428757 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202428737) 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, 1002919 + ... + 1015012.

It is an arithmetic number, because the mean of its divisors is an integer number (3051113184).

Almost surely, 2^12202428757 is an apocalyptic number.

It is an amenable number.

12202428757 is a deficient number, since it is larger than the sum of its proper divisors (2023979).

12202428757 is an equidigital number, since it uses as much as digits as its factorization.

12202428757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023978.

The product of its (nonzero) digits is 125440, while the sum is 40.

Adding to 12202428757 its reverse (75782420221), we get a palindrome (87984848978).

The spelling of 12202428757 in words is "twelve billion, two hundred two million, four hundred twenty-eight thousand, seven hundred fifty-seven".