22010112102221 has 4 divisors (see below), whose sum is σ = 22204891855452. Its totient is φ = 21815332348992.

The previous prime is 22010112102203. The next prime is 22010112102239. The reversal of 22010112102221 is 12220121101022.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22010112102203) and next prime (22010112102239).

It can be written as a sum of positive squares in 2 ways, for example, as 3611254108900 + 18398857993321 = 1900330^2 + 4289389^2 .

It is a cyclic number.

It is not a de Polignac number, because 22010112102221 - 2¹⁴ = 22010112085837 is a prime.

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 22010112102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010112402221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97389876446 + ... + 97389876671.

It is an arithmetic number, because the mean of its divisors is an integer number (5551222963863).

Almost surely, 2^{22010112102221} is an apocalyptic number.

It is an amenable number.

22010112102221 is a deficient number, since it is larger than the sum of its proper divisors (194779753231).

22010112102221 is a wasteful number, since it uses less digits than its factorization.

22010112102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194779753230.

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

Adding to 22010112102221 its reverse (12220121101022), we get a palindrome (34230233203243).

The spelling of 22010112102221 in words is "twenty-two trillion, ten billion, one hundred twelve million, one hundred two thousand, two hundred twenty-one".