22000000112221 has 4 divisors (see below), whose sum is σ = 22000015718812. Its totient is φ = 21999984505632.

The previous prime is 22000000112219. The next prime is 22000000112243. The reversal of 22000000112221 is 12221100000022.

It is a happy number.

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 5494387568121 + 16505612544100 = 2344011^2 + 4062710^2 .

It is a cyclic number.

It is not a de Polignac number, because 22000000112221 - 2¹ = 22000000112219 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 (22000000112261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5452800 + ... + 8586793.

It is an arithmetic number, because the mean of its divisors is an integer number (5500003929703).

Almost surely, 2^{22000000112221} is an apocalyptic number.

It is an amenable number.

22000000112221 is a deficient number, since it is larger than the sum of its proper divisors (15606591).

22000000112221 is a wasteful number, since it uses less digits than its factorization.

22000000112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15606590.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22000000112221 its reverse (12221100000022), we get a palindrome (34221100112243).

The spelling of 22000000112221 in words is "twenty-two trillion, one hundred twelve thousand, two hundred twenty-one".