22220201122221 has 16 divisors (see below), whose sum is σ = 30311617146624. Its totient is φ = 14472257964864.

The previous prime is 22220201122213. The next prime is 22220201122271. The reversal of 22220201122221 is 12222110202222.

It is not a de Polignac number, because 22220201122221 - 2³ = 22220201122213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220201122271) 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 15 ways as a sum of consecutive naturals, for example, 141384730 + ... + 141541803.

It is an arithmetic number, because the mean of its divisors is an integer number (1894476071664).

Almost surely, 2^{22220201122221} is an apocalyptic number.

It is an amenable number.

22220201122221 is a deficient number, since it is larger than the sum of its proper divisors (8091416024403).

22220201122221 is a wasteful number, since it uses less digits than its factorization.

22220201122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282927140.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22220201122221 its reverse (12222110202222), we get a palindrome (34442311324443).

The spelling of 22220201122221 in words is "twenty-two trillion, two hundred twenty billion, two hundred one million, one hundred twenty-two thousand, two hundred twenty-one".