11110021081121 has 2 divisors, whose sum is σ = 11110021081122. Its totient is φ = 11110021081120.

The previous prime is 11110021081111. The next prime is 11110021081139. The reversal of 11110021081121 is 12118012001111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10644950275600 + 465070805521 = 3262660^2 + 681961^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11110021081121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11110021081093 and 11110021081102.

It is not a weakly prime, because it can be changed into another prime (11110021081111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555010540560 + 5555010540561.

It is an arithmetic number, because the mean of its divisors is an integer number (5555010540561).

Almost surely, 2^{11110021081121} is an apocalyptic number.

It is an amenable number.

11110021081121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11110021081121 is an equidigital number, since it uses as much as digits as its factorization.

11110021081121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 20.

Adding to 11110021081121 its reverse (12118012001111), we get a palindrome (23228033082232).

The spelling of 11110021081121 in words is "eleven trillion, one hundred ten billion, twenty-one million, eighty-one thousand, one hundred twenty-one".