221022111020011 has 12 divisors (see below), whose sum is σ = 257148510923568. Its totient is φ = 189417197308752.

The previous prime is 221022111019939. The next prime is 221022111020021. The reversal of 221022111020011 is 110020111220122.

It is not a de Polignac number, because 221022111020011 - 2¹⁵ = 221022110987243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221022111020021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 360719616 + ... + 361331821.

It is an arithmetic number, because the mean of its divisors is an integer number (21429042576964).

Almost surely, 2^{221022111020011} is an apocalyptic number.

221022111020011 is a deficient number, since it is larger than the sum of its proper divisors (36126399903557).

221022111020011 is an equidigital number, since it uses as much as digits as its factorization.

221022111020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722057698 (or 722057691 counting only the distinct ones).

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

Adding to 221022111020011 its reverse (110020111220122), we get a palindrome (331042222240133).

The spelling of 221022111020011 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred eleven million, twenty thousand, eleven".