11110021221121 has 8 divisors (see below), whose sum is σ = 11114516787264. Its totient is φ = 11105525973360.

The previous prime is 11110021221119. The next prime is 11110021221191. The reversal of 11110021221121 is 12112212001111.

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

It is a cyclic number.

It is not a de Polignac number, because 11110021221121 - 2¹ = 11110021221119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11110021221095 and 11110021221104.

It is not an unprimeable number, because it can be changed into a prime (11110021221191) 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, 89878260 + ... + 90001786.

It is an arithmetic number, because the mean of its divisors is an integer number (1389314598408).

Almost surely, 2^{11110021221121} is an apocalyptic number.

It is an amenable number.

11110021221121 is a deficient number, since it is larger than the sum of its proper divisors (4495566143).

11110021221121 is a wasteful number, since it uses less digits than its factorization.

11110021221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159191.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11110021221121 its reverse (12112212001111), we get a palindrome (23222233222232).

The spelling of 11110021221121 in words is "eleven trillion, one hundred ten billion, twenty-one million, two hundred twenty-one thousand, one hundred twenty-one".