221110210020011 has 16 divisors (see below), whose sum is σ = 241475072848128. Its totient is φ = 201224892708000.

The previous prime is 221110210019947. The next prime is 221110210020017. The reversal of 221110210020011 is 110020012011122.

It is a cyclic number.

It is not a de Polignac number, because 221110210020011 - 2⁶ = 221110210019947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221110210020017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87782420 + ... + 90266126.

It is an arithmetic number, because the mean of its divisors is an integer number (15092192053008).

Almost surely, 2^{221110210020011} is an apocalyptic number.

221110210020011 is a deficient number, since it is larger than the sum of its proper divisors (20364862828117).

221110210020011 is a wasteful number, since it uses less digits than its factorization.

221110210020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580242.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221110210020011 its reverse (110020012011122), we get a palindrome (331130222031133).

The spelling of 221110210020011 in words is "two hundred twenty-one trillion, one hundred ten billion, two hundred ten million, twenty thousand, eleven".