11100001111021 has 4 divisors (see below), whose sum is σ = 11100242519100. Its totient is φ = 11099759702944.

The previous prime is 11100001110973. The next prime is 11100001111117. The reversal of 11100001111021 is 12011110000111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3900111516900 + 7199889594121 = 1974870^2 + 2683261^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100001111021 - 2¹³ = 11100001102829 is a prime.

It is a super-3 number, since 3×11100001111021³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11100001110989 and 11100001111007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100001151021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120635056 + ... + 120727033.

It is an arithmetic number, because the mean of its divisors is an integer number (2775060629775).

Almost surely, 2^{11100001111021} is an apocalyptic number.

It is an amenable number.

11100001111021 is a deficient number, since it is larger than the sum of its proper divisors (241408079).

11100001111021 is an equidigital number, since it uses as much as digits as its factorization.

11100001111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241408078.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 11100001111021 its reverse (12011110000111), we get a palindrome (23111111111132).

The spelling of 11100001111021 in words is "eleven trillion, one hundred billion, one million, one hundred eleven thousand, twenty-one".