11101101420221 has 4 divisors (see below), whose sum is σ = 11102538835872. Its totient is φ = 11099664004572.

The previous prime is 11101101420209. The next prime is 11101101420223. The reversal of 11101101420221 is 12202410110111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11101101420221 - 2¹⁴ = 11101101403837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11101101420221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101101420223) 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, 718696241 + ... + 718711686.

It is an arithmetic number, because the mean of its divisors is an integer number (2775634708968).

Almost surely, 2^{11101101420221} is an apocalyptic number.

It is an amenable number.

11101101420221 is a deficient number, since it is larger than the sum of its proper divisors (1437415651).

11101101420221 is an equidigital number, since it uses as much as digits as its factorization.

11101101420221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437415650.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11101101420221 its reverse (12202410110111), we get a palindrome (23303511530332).

The spelling of 11101101420221 in words is "eleven trillion, one hundred one billion, one hundred one million, four hundred twenty thousand, two hundred twenty-one".