112221010202221 has 4 divisors (see below), whose sum is σ = 112261074828444. Its totient is φ = 112180945576000.

The previous prime is 112221010202183. The next prime is 112221010202297. The reversal of 112221010202221 is 122202010122211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 65149596540900 + 47071413661321 = 8071530^2 + 6860861^2 .

It is a cyclic number.

It is not a de Polignac number, because 112221010202221 - 2⁹ = 112221010201709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221010242221) 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, 20032308910 + ... + 20032314511.

It is an arithmetic number, because the mean of its divisors is an integer number (28065268707111).

Almost surely, 2^{112221010202221} is an apocalyptic number.

It is an amenable number.

112221010202221 is a deficient number, since it is larger than the sum of its proper divisors (40064626223).

112221010202221 is an equidigital number, since it uses as much as digits as its factorization.

112221010202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40064626222.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 112221010202221 its reverse (122202010122211), we get a palindrome (234423020324432).

The spelling of 112221010202221 in words is "one hundred twelve trillion, two hundred twenty-one billion, ten million, two hundred two thousand, two hundred twenty-one".