12001211210057 has 2 divisors, whose sum is σ = 12001211210058. Its totient is φ = 12001211210056.

The previous prime is 12001211210041. The next prime is 12001211210083. The reversal of 12001211210057 is 75001211210021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11910671001856 + 90540208201 = 3451184^2 + 300899^2 .

It is a cyclic number.

It is not a de Polignac number, because 12001211210057 - 2⁴ = 12001211210041 is a prime.

It is not a weakly prime, because it can be changed into another prime (12001211210957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000605605028 + 6000605605029.

It is an arithmetic number, because the mean of its divisors is an integer number (6000605605029).

Almost surely, 2^{12001211210057} is an apocalyptic number.

It is an amenable number.

12001211210057 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001211210057 is an equidigital number, since it uses as much as digits as its factorization.

12001211210057 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 23.

Adding to 12001211210057 its reverse (75001211210021), we get a palindrome (87002422420078).

The spelling of 12001211210057 in words is "twelve trillion, one billion, two hundred eleven million, two hundred ten thousand, fifty-seven".