11221111201011 has 12 divisors (see below), whose sum is σ = 15376774741272. Its totient is φ = 7278558614208.

The previous prime is 11221111200983. The next prime is 11221111201063. The reversal of 11221111201011 is 11010211112211.

It is not a de Polignac number, because 11221111201011 - 2⁹ = 11221111200499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11221111221011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1366091730 + ... + 1366099943.

It is an arithmetic number, because the mean of its divisors is an integer number (1281397895106).

Almost surely, 2^{11221111201011} is an apocalyptic number.

11221111201011 is a deficient number, since it is larger than the sum of its proper divisors (4155663540261).

11221111201011 is an equidigital number, since it uses as much as digits as its factorization.

11221111201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732191750 (or 2732191713 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11221111201011 its reverse (11010211112211), we get a palindrome (22231322313222).

The spelling of 11221111201011 in words is "eleven trillion, two hundred twenty-one billion, one hundred eleven million, two hundred one thousand, eleven".