1110012120001 has 2 divisors, whose sum is σ = 1110012120002. Its totient is φ = 1110012120000.

The previous prime is 1110012119999. The next prime is 1110012120023. The reversal of 1110012120001 is 1000212100111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 767242853776 + 342769266225 = 875924^2 + 585465^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110012120001 - 2¹ = 1110012119999 is a prime.

It is a super-2 number, since 2×1110012120001² (a number of 25 digits) contains 22 as substring.

Together with 1110012119999, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1110012120001.

It is not a weakly prime, because it can be changed into another prime (1110012120031) 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 as a sum of consecutive naturals, namely, 555006060000 + 555006060001.

It is an arithmetic number, because the mean of its divisors is an integer number (555006060001).

Almost surely, 2^{1110012120001} is an apocalyptic number.

It is an amenable number.

1110012120001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110012120001 is an equidigital number, since it uses as much as digits as its factorization.

1110012120001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1110012120001 its reverse (1000212100111), we get a palindrome (2110224220112).

The spelling of 1110012120001 in words is "one trillion, one hundred ten billion, twelve million, one hundred twenty thousand, one".