11010201002221 has 4 divisors (see below), whose sum is σ = 11111212020700. Its totient is φ = 10909189983744.

The previous prime is 11010201002191. The next prime is 11010201002239. The reversal of 11010201002221 is 12220010201011.

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 9071005499721 + 1939195502500 = 3011811^2 + 1392550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11010201002221 is a prime.

It is a super-2 number, since 2×11010201002221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11010201002321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50505509076 + ... + 50505509293.

It is an arithmetic number, because the mean of its divisors is an integer number (2777803005175).

Almost surely, 2^{11010201002221} is an apocalyptic number.

It is an amenable number.

11010201002221 is a deficient number, since it is larger than the sum of its proper divisors (101011018479).

11010201002221 is a wasteful number, since it uses less digits than its factorization.

11010201002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101011018478.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11010201002221 its reverse (12220010201011), we get a palindrome (23230211203232).

The spelling of 11010201002221 in words is "eleven trillion, ten billion, two hundred one million, two thousand, two hundred twenty-one".