11101012100221 has 8 divisors (see below), whose sum is σ = 11227884018624. Its totient is φ = 10974507395520.

The previous prime is 11101012100203. The next prime is 11101012100273. The reversal of 11101012100221 is 12200121010111.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11101012100221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101012100291) 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, 91742620 + ... + 91863541.

It is an arithmetic number, because the mean of its divisors is an integer number (1403485502328).

Almost surely, 2^{11101012100221} is an apocalyptic number.

It is an amenable number.

11101012100221 is a deficient number, since it is larger than the sum of its proper divisors (126871918403).

11101012100221 is a wasteful number, since it uses less digits than its factorization.

11101012100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183606851.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11101012100221 its reverse (12200121010111), we get a palindrome (23301133110332).

The spelling of 11101012100221 in words is "eleven trillion, one hundred one billion, twelve million, one hundred thousand, two hundred twenty-one".