2211020110221 has 16 divisors (see below), whose sum is σ = 3185139486144. Its totient is φ = 1356195740544.

The previous prime is 2211020110217. The next prime is 2211020110231. The reversal of 2211020110221 is 1220110201122.

It is not a de Polignac number, because 2211020110221 - 2² = 2211020110217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2211020110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211020110231) 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, 92321616 + ... + 92345561.

It is an arithmetic number, because the mean of its divisors is an integer number (199071217884).

Almost surely, 2^{2211020110221} is an apocalyptic number.

It is an amenable number.

2211020110221 is a deficient number, since it is larger than the sum of its proper divisors (974119375923).

2211020110221 is a wasteful number, since it uses less digits than its factorization.

2211020110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184667500.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2211020110221 its reverse (1220110201122), we get a palindrome (3431130311343).

Subtracting from 2211020110221 its reverse (1220110201122), we obtain a palindrome (990909909099).

The spelling of 2211020110221 in words is "two trillion, two hundred eleven billion, twenty million, one hundred ten thousand, two hundred twenty-one".