11010202212221 has 8 divisors (see below), whose sum is σ = 11989330903200. Its totient is φ = 10071037957680.

The previous prime is 11010202212199. The next prime is 11010202212257. The reversal of 11010202212221 is 12221220201011.

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-11010202212221 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 11010202212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11010202262221) 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, 9991108535 + ... + 9991109636.

It is an arithmetic number, because the mean of its divisors is an integer number (1498666362900).

Almost surely, 2^{11010202212221} is an apocalyptic number.

It is an amenable number.

11010202212221 is a deficient number, since it is larger than the sum of its proper divisors (979128690979).

11010202212221 is a wasteful number, since it uses less digits than its factorization.

11010202212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19982218219.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11010202212221 its reverse (12221220201011), we get a palindrome (23231422413232).

The spelling of 11010202212221 in words is "eleven trillion, ten billion, two hundred two million, two hundred twelve thousand, two hundred twenty-one".