11010220221211 has 4 divisors (see below), whose sum is σ = 11010851233000. Its totient is φ = 11009589209424.

The previous prime is 11010220221199. The next prime is 11010220221233. The reversal of 11010220221211 is 11212202201011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11010220221211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11010220221271) 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, 315479721 + ... + 315514618.

It is an arithmetic number, because the mean of its divisors is an integer number (2752712808250).

Almost surely, 2^{11010220221211} is an apocalyptic number.

11010220221211 is a deficient number, since it is larger than the sum of its proper divisors (631011789).

11010220221211 is an equidigital number, since it uses as much as digits as its factorization.

11010220221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631011788.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11010220221211 its reverse (11212202201011), we get a palindrome (22222422422222).

The spelling of 11010220221211 in words is "eleven trillion, ten billion, two hundred twenty million, two hundred twenty-one thousand, two hundred eleven".