22121022022 has 16 divisors (see below), whose sum is σ = 36881019792. Its totient is φ = 9865292320.

The previous prime is 22121022019. The next prime is 22121022029. The reversal of 22121022022 is 22022012122.

It is a junction number, because it is equal to n+sod(n) for n = 22121021987 and 22121022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121022029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9484693 + ... + 9487024.

It is an arithmetic number, because the mean of its divisors is an integer number (2305063737).

Almost surely, 2^22121022022 is an apocalyptic number.

22121022022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22121022022 is a deficient number, since it is larger than the sum of its proper divisors (14759997770).

22121022022 is a wasteful number, since it uses less digits than its factorization.

22121022022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18971783.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22121022022 its reverse (22022012122), we get a palindrome (44143034144).

The spelling of 22121022022 in words is "twenty-two billion, one hundred twenty-one million, twenty-two thousand, twenty-two".