11112010012121 has 2 divisors, whose sum is σ = 11112010012122. Its totient is φ = 11112010012120.

The previous prime is 11112010012097. The next prime is 11112010012177. The reversal of 11112010012121 is 12121001021111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8902137486025 + 2209872526096 = 2983645^2 + 1486564^2 .

It is a cyclic number.

It is not a de Polignac number, because 11112010012121 - 2³⁴ = 11094830142937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11112010012096 and 11112010012105.

It is not a weakly prime, because it can be changed into another prime (11112010012721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556005006060 + 5556005006061.

It is an arithmetic number, because the mean of its divisors is an integer number (5556005006061).

Almost surely, 2^{11112010012121} is an apocalyptic number.

It is an amenable number.

11112010012121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112010012121 is an equidigital number, since it uses as much as digits as its factorization.

11112010012121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11112010012121 its reverse (12121001021111), we get a palindrome (23233011033232).

The spelling of 11112010012121 in words is "eleven trillion, one hundred twelve billion, ten million, twelve thousand, one hundred twenty-one".