22221000122 has 8 divisors (see below), whose sum is σ = 33405736500. Its totient is φ = 11085754624.

The previous prime is 22221000089. The next prime is 22221000187. The reversal of 22221000122 is 22100012222.

It can be written as a sum of positive squares in 2 ways, for example, as 22061457961 + 159542161 = 148531^2 + 12631^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22221000097 and 22221000106.

It is an unprimeable number.

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, 12371597 + ... + 12373392.

Almost surely, 2^22221000122 is an apocalyptic number.

22221000122 is a deficient number, since it is larger than the sum of its proper divisors (11184736378).

22221000122 is a wasteful number, since it uses less digits than its factorization.

22221000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24745440.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22221000122 its reverse (22100012222), we get a palindrome (44321012344).

It can be divided in two parts, 22 and 221000122, that multiplied together give a palindrome (4862002684).

The spelling of 22221000122 in words is "twenty-two billion, two hundred twenty-one million, one hundred twenty-two", and thus it is an aban number.