112202202221 has 2 divisors, whose sum is σ = 112202202222. Its totient is φ = 112202202220.

The previous prime is 112202202173. The next prime is 112202202223. The reversal of 112202202221 is 122202202211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111899616196 + 302586025 = 334514^2 + 17395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112202202221 is a prime.

Together with 112202202223, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112202202221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112202202223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56101101110 + 56101101111.

It is an arithmetic number, because the mean of its divisors is an integer number (56101101111).

Almost surely, 2^112202202221 is an apocalyptic number.

It is an amenable number.

112202202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

112202202221 is an equidigital number, since it uses as much as digits as its factorization.

112202202221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 112202202221 its reverse (122202202211), we get a palindrome (234404404432).

The spelling of 112202202221 in words is "one hundred twelve billion, two hundred two million, two hundred two thousand, two hundred twenty-one".