11101201110021 has 32 divisors (see below), whose sum is σ = 17304639141888. Its totient is φ = 6261547026240.

The previous prime is 11101201109963. The next prime is 11101201110143. The reversal of 11101201110021 is 12001110210111.

It is not a de Polignac number, because 11101201110021 - 2²² = 11101196915717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11101201109979 and 11101201110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101202110021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197621761 + ... + 197677926.

It is an arithmetic number, because the mean of its divisors is an integer number (540769973184).

Almost surely, 2^{11101201110021} is an apocalyptic number.

11101201110021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11101201110021 is a deficient number, since it is larger than the sum of its proper divisors (6203438031867).

11101201110021 is a wasteful number, since it uses less digits than its factorization.

11101201110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395299761.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11101201110021 its reverse (12001110210111), we get a palindrome (23102311320132).

The spelling of 11101201110021 in words is "eleven trillion, one hundred one billion, two hundred one million, one hundred ten thousand, twenty-one".