12001088857 has 2 divisors, whose sum is σ = 12001088858. Its totient is φ = 12001088856.

The previous prime is 12001088849. The next prime is 12001088909. The reversal of 12001088857 is 75888010021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7916728576 + 4084360281 = 88976^2 + 63909^2 .

It is an emirp because it is prime and its reverse (75888010021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12001088857 - 2³ = 12001088849 is a prime.

It is a super-2 number, since 2×12001088857² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12001080857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000544428 + 6000544429.

It is an arithmetic number, because the mean of its divisors is an integer number (6000544429).

Almost surely, 2^12001088857 is an apocalyptic number.

It is an amenable number.

12001088857 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001088857 is an equidigital number, since it uses as much as digits as its factorization.

12001088857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35840, while the sum is 40.

Adding to 12001088857 its reverse (75888010021), we get a palindrome (87889098878).

The spelling of 12001088857 in words is "twelve billion, one million, eighty-eight thousand, eight hundred fifty-seven".