11202010011221 has 4 divisors (see below), whose sum is σ = 11413368690732. Its totient is φ = 10990651331712.

The previous prime is 11202010011197. The next prime is 11202010011223. The reversal of 11202010011221 is 12211001020211.

11202010011221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7057178206225 + 4144831804996 = 2656535^2 + 2035886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11202010011221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11202010011196 and 11202010011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202010011223) 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, 105679339676 + ... + 105679339781.

It is an arithmetic number, because the mean of its divisors is an integer number (2853342172683).

Almost surely, 2^{11202010011221} is an apocalyptic number.

It is an amenable number.

11202010011221 is a deficient number, since it is larger than the sum of its proper divisors (211358679511).

11202010011221 is an equidigital number, since it uses as much as digits as its factorization.

11202010011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211358679510.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11202010011221 its reverse (12211001020211), we get a palindrome (23413011031432).

The spelling of 11202010011221 in words is "eleven trillion, two hundred two billion, ten million, eleven thousand, two hundred twenty-one".