11111010221121 has 8 divisors (see below), whose sum is σ = 14867401578144. Its totient is φ = 7380979505760.

The previous prime is 11111010221093. The next prime is 11111010221147. The reversal of 11111010221121 is 12112201011111.

11111010221121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11111010221121 - 2³⁰ = 11109936479297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11111010221121.

It is not an unprimeable number, because it can be changed into a prime (11111010221221) 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, 6590159431 + ... + 6590161116.

It is an arithmetic number, because the mean of its divisors is an integer number (1858425197268).

Almost surely, 2^{11111010221121} is an apocalyptic number.

It is an amenable number.

11111010221121 is a deficient number, since it is larger than the sum of its proper divisors (3756391357023).

11111010221121 is a wasteful number, since it uses less digits than its factorization.

11111010221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13180320831.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11111010221121 its reverse (12112201011111), we get a palindrome (23223211232232).

The spelling of 11111010221121 in words is "eleven trillion, one hundred eleven billion, ten million, two hundred twenty-one thousand, one hundred twenty-one".