22000121022 has 96 divisors (see below), whose sum is σ = 51303956256. Its totient is φ = 6262896640.

The previous prime is 22000121021. The next prime is 22000121047. The reversal of 22000121022 is 22012100022.

It is a junction number, because it is equal to n+sod(n) for n = 22000120989 and 22000121007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000121021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8354218 + ... + 8356850.

It is an arithmetic number, because the mean of its divisors is an integer number (534416211).

Almost surely, 2^22000121022 is an apocalyptic number.

22000121022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22000121022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25651978128).

22000121022 is an abundant number, since it is smaller than the sum of its proper divisors (29303835234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22000121022 is a wasteful number, since it uses less digits than its factorization.

22000121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354 (or 3343 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22000121022 its reverse (22012100022), we get a palindrome (44012221044).

The spelling of 22000121022 in words is "twenty-two billion, one hundred twenty-one thousand, twenty-two".