11101002100221 has 32 divisors (see below), whose sum is σ = 16936252296192. Its totient is φ = 6402019599360.

The previous prime is 11101002100217. The next prime is 11101002100229. The reversal of 11101002100221 is 12200120010111.

It is not a de Polignac number, because 11101002100221 - 2² = 11101002100217 is a prime.

It is a super-2 number, since 2×11101002100221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11101002100197 and 11101002100206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101002100229) 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, 37744255 + ... + 38037228.

It is an arithmetic number, because the mean of its divisors is an integer number (529257884256).

Almost surely, 2^{11101002100221} is an apocalyptic number.

11101002100221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11101002100221 is a deficient number, since it is larger than the sum of its proper divisors (5835250195971).

11101002100221 is a wasteful number, since it uses less digits than its factorization.

11101002100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75781713.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11101002100221 its reverse (12200120010111), we get a palindrome (23301122110332).

The spelling of 11101002100221 in words is "eleven trillion, one hundred one billion, two million, one hundred thousand, two hundred twenty-one".