12111210625757 has 4 divisors (see below), whose sum is σ = 12152545815900. Its totient is φ = 12069875435616.

The previous prime is 12111210625739. The next prime is 12111210625831. The reversal of 12111210625757 is 75752601211121.

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 10363383846841 + 1747826778916 = 3219221^2 + 1322054^2 .

It is a cyclic number.

It is not a de Polignac number, because 12111210625757 - 2⁶ = 12111210625693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111210625457) 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, 20667594632 + ... + 20667595217.

It is an arithmetic number, because the mean of its divisors is an integer number (3038136453975).

Almost surely, 2^{12111210625757} is an apocalyptic number.

It is an amenable number.

12111210625757 is a deficient number, since it is larger than the sum of its proper divisors (41335190143).

12111210625757 is an equidigital number, since it uses as much as digits as its factorization.

12111210625757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41335190142.

The product of its (nonzero) digits is 58800, while the sum is 41.

Adding to 12111210625757 its reverse (75752601211121), we get a palindrome (87863811836878).

The spelling of 12111210625757 in words is "twelve trillion, one hundred eleven billion, two hundred ten million, six hundred twenty-five thousand, seven hundred fifty-seven".