11110021021121 has 8 divisors (see below), whose sum is σ = 12120917363424. Its totient is φ = 10099273750720.

The previous prime is 11110021021091. The next prime is 11110021021153. The reversal of 11110021021121 is 12112012001111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-11110021021121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11110021021096 and 11110021021105.

It is not an unprimeable number, because it can be changed into a prime (11110021081121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37112111 + ... + 37410276.

It is an arithmetic number, because the mean of its divisors is an integer number (1515114670428).

Almost surely, 2^{11110021021121} is an apocalyptic number.

11110021021121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11110021021121 is a deficient number, since it is larger than the sum of its proper divisors (1010896342303).

11110021021121 is a wasteful number, since it uses less digits than its factorization.

11110021021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74535951.

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

Adding to 11110021021121 its reverse (12112012001111), we get a palindrome (23222033022232).

The spelling of 11110021021121 in words is "eleven trillion, one hundred ten billion, twenty-one million, twenty-one thousand, one hundred twenty-one".