12001122100057 has 2 divisors, whose sum is σ = 12001122100058. Its totient is φ = 12001122100056.

The previous prime is 12001122099973. The next prime is 12001122100069. The reversal of 12001122100057 is 75000122110021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11981366110921 + 19755989136 = 3461411^2 + 140556^2 .

It is an emirp because it is prime and its reverse (75000122110021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12001122100057 - 2³⁵ = 11966762361689 is a prime.

It is not a weakly prime, because it can be changed into another prime (12001122101057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000561050028 + 6000561050029.

It is an arithmetic number, because the mean of its divisors is an integer number (6000561050029).

Almost surely, 2^{12001122100057} is an apocalyptic number.

It is an amenable number.

12001122100057 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001122100057 is an equidigital number, since it uses as much as digits as its factorization.

12001122100057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 22.

Adding to 12001122100057 its reverse (75000122110021), we get a palindrome (87001244210078).

The spelling of 12001122100057 in words is "twelve trillion, one billion, one hundred twenty-two million, one hundred thousand, fifty-seven".