22010112201221 has 48 divisors (see below), whose sum is σ = 24673574016000. Its totient is φ = 19555652914560.

The previous prime is 22010112201139. The next prime is 22010112201257. The reversal of 22010112201221 is 12210221101022.

It is not a de Polignac number, because 22010112201221 - 2¹⁸ = 22010111939077 is a prime.

It is a super-2 number, since 2×22010112201221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22010112201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010112207221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 184342940 + ... + 184462298.

It is an arithmetic number, because the mean of its divisors is an integer number (514032792000).

Almost surely, 2^{22010112201221} is an apocalyptic number.

It is an amenable number.

22010112201221 is a deficient number, since it is larger than the sum of its proper divisors (2663461814779).

22010112201221 is a wasteful number, since it uses less digits than its factorization.

22010112201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119674 (or 119631 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22010112201221 its reverse (12210221101022), we get a palindrome (34220333302243).

The spelling of 22010112201221 in words is "twenty-two trillion, ten billion, one hundred twelve million, two hundred one thousand, two hundred twenty-one".