112222200221 has 4 divisors (see below), whose sum is σ = 112975369500. Its totient is φ = 111469030944.

The previous prime is 112222200107. The next prime is 112222200257. The reversal of 112222200221 is 122002222211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122002222211 = 239 ⋅510469549.

It can be written as a sum of positive squares in 2 ways, for example, as 35952331321 + 76269868900 = 189611^2 + 276170^2 .

It is a cyclic number.

It is not a de Polignac number, because 112222200221 - 2¹⁰ = 112222199197 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 112222200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112222200281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376584416 + ... + 376584713.

It is an arithmetic number, because the mean of its divisors is an integer number (28243842375).

Almost surely, 2^112222200221 is an apocalyptic number.

It is an amenable number.

112222200221 is a deficient number, since it is larger than the sum of its proper divisors (753169279).

112222200221 is an equidigital number, since it uses as much as digits as its factorization.

112222200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753169278.

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

Adding to 112222200221 its reverse (122002222211), we get a palindrome (234224422432).

The spelling of 112222200221 in words is "one hundred twelve billion, two hundred twenty-two million, two hundred thousand, two hundred twenty-one".