11110221221011 has 6 divisors (see below), whose sum is σ = 12212061342236. Its totient is φ = 10100201109900.

The previous prime is 11110221220999. The next prime is 11110221221017. The reversal of 11110221221011 is 11012212201111.

It is not a de Polignac number, because 11110221221011 - 2¹¹ = 11110221218963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11110221221017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45910004925 + ... + 45910005166.

Almost surely, 2^{11110221221011} is an apocalyptic number.

11110221221011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11110221221011 is a deficient number, since it is larger than the sum of its proper divisors (1101840121225).

11110221221011 is an equidigital number, since it uses as much as digits as its factorization.

11110221221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91820010113 (or 91820010102 counting only the distinct ones).

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

Adding to 11110221221011 its reverse (11012212201111), we get a palindrome (22122433422122).

The spelling of 11110221221011 in words is "eleven trillion, one hundred ten billion, two hundred twenty-one million, two hundred twenty-one thousand, eleven".