112122001021813 has 2 divisors, whose sum is σ = 112122001021814. Its totient is φ = 112122001021812.

The previous prime is 112122001021799. The next prime is 112122001021909. The reversal of 112122001021813 is 318120100221211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83216302556209 + 28905698465604 = 9122297^2 + 5376402^2 .

It is an emirp because it is prime and its reverse (318120100221211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112122001021813 - 2¹³ = 112122001013621 is a prime.

It is a super-2 number, since 2×112122001021813² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112122001021913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56061000510906 + 56061000510907.

It is an arithmetic number, because the mean of its divisors is an integer number (56061000510907).

Almost surely, 2^{112122001021813} is an apocalyptic number.

It is an amenable number.

112122001021813 is a deficient number, since it is larger than the sum of its proper divisors (1).

112122001021813 is an equidigital number, since it uses as much as digits as its factorization.

112122001021813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 25.

The spelling of 112122001021813 in words is "one hundred twelve trillion, one hundred twenty-two billion, one million, twenty-one thousand, eight hundred thirteen".