11011110110021 has 48 divisors (see below), whose sum is σ = 13938944544000. Its totient is φ = 8490557458944.

The previous prime is 11011110110009. The next prime is 11011110110051. The reversal of 11011110110021 is 12001101111011.

It is a happy number.

It is not a de Polignac number, because 11011110110021 - 2²⁶ = 11011043001157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11011110109984 and 11011110110011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011110110051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88005935 + ... + 88130963.

It is an arithmetic number, because the mean of its divisors is an integer number (290394678000).

Almost surely, 2^{11011110110021} is an apocalyptic number.

It is an amenable number.

11011110110021 is a deficient number, since it is larger than the sum of its proper divisors (2927834433979).

11011110110021 is a wasteful number, since it uses less digits than its factorization.

11011110110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126498 (or 126475 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 11011110110021 its reverse (12001101111011), we get a palindrome (23012211221032).

The spelling of 11011110110021 in words is "eleven trillion, eleven billion, one hundred ten million, one hundred ten thousand, twenty-one".