22121221130 has 8 divisors (see below), whose sum is σ = 39818198052. Its totient is φ = 8848488448.

The previous prime is 22121221127. The next prime is 22121221153. The reversal of 22121221130 is 3112212122.

It can be written as a sum of positive squares in 2 ways, for example, as 21582841921 + 538379209 = 146911^2 + 23203^2 .

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 = 22121221099 and 22121221108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106061047 + ... + 1106061066.

Almost surely, 2^22121221130 is an apocalyptic number.

22121221130 is a deficient number, since it is larger than the sum of its proper divisors (17696976922).

22121221130 is a wasteful number, since it uses less digits than its factorization.

22121221130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212122120.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22121221130 its reverse (3112212122), we get a palindrome (25233433252).

The spelling of 22121221130 in words is "twenty-two billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred thirty".