22011002002221 has 8 divisors (see below), whose sum is σ = 29348117036160. Its totient is φ = 14673944151552.

The previous prime is 22011002002201. The next prime is 22011002002279. The reversal of 22011002002221 is 12220020011022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22011002002221 - 2²² = 22010997807917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22011002002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011002002201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13389460 + ... + 14943213.

It is an arithmetic number, because the mean of its divisors is an integer number (3668514629520).

Almost surely, 2^{22011002002221} is an apocalyptic number.

It is an amenable number.

22011002002221 is a deficient number, since it is larger than the sum of its proper divisors (7337115033939).

22011002002221 is a wasteful number, since it uses less digits than its factorization.

22011002002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28591635.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22011002002221 its reverse (12220020011022), we get a palindrome (34231022013243).

The spelling of 22011002002221 in words is "twenty-two trillion, eleven billion, two million, two thousand, two hundred twenty-one".