11010202022221 has 4 divisors (see below), whose sum is σ = 11589686339200. Its totient is φ = 10430717705244.

The previous prime is 11010202022219. The next prime is 11010202022269. The reversal of 11010202022221 is 12222020201011.

It is a happy number.

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 11010202022221 - 2¹ = 11010202022219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11010202022195 and 11010202022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11010202022821) 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, 289742158461 + ... + 289742158498.

It is an arithmetic number, because the mean of its divisors is an integer number (2897421584800).

Almost surely, 2^{11010202022221} is an apocalyptic number.

It is an amenable number.

11010202022221 is a deficient number, since it is larger than the sum of its proper divisors (579484316979).

11010202022221 is an equidigital number, since it uses as much as digits as its factorization.

11010202022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579484316978.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11010202022221 its reverse (12222020201011), we get a palindrome (23232222223232).

The spelling of 11010202022221 in words is "eleven trillion, ten billion, two hundred two million, twenty-two thousand, two hundred twenty-one".