22121221001122 has 8 divisors (see below), whose sum is σ = 33181866224172. Its totient is φ = 11060598926400.

The previous prime is 22121221001003. The next prime is 22121221001123. The reversal of 22121221001122 is 22110012212122.

It can be written as a sum of positive squares in 2 ways, for example, as 21739456428481 + 381764572641 = 4662559^2 + 617871^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 22121221001122.

It is not an unprimeable number, because it can be changed into a prime (22121221001123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3159379 + ... + 7363702.

Almost surely, 2^{22121221001122} is an apocalyptic number.

22121221001122 is a deficient number, since it is larger than the sum of its proper divisors (11060645223050).

22121221001122 is a wasteful number, since it uses less digits than its factorization.

22121221001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11574164.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22121221001122 its reverse (22110012212122), we get a palindrome (44231233213244).

The spelling of 22121221001122 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred twenty-one million, one thousand, one hundred twenty-two".