22021000122 has 32 divisors (see below), whose sum is σ = 48833463744. Its totient is φ = 6563635200.

The previous prime is 22021000109. The next prime is 22021000159. The reversal of 22021000122 is 22100012022.

It is a junction number, because it is equal to n+sod(n) for n = 22021000098 and 22021000107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2730823 + ... + 2738874.

It is an arithmetic number, because the mean of its divisors is an integer number (1526045742).

Almost surely, 2^22021000122 is an apocalyptic number.

22021000122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22021000122 is an abundant number, since it is smaller than the sum of its proper divisors (26812463622).

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

22021000122 is a wasteful number, since it uses less digits than its factorization.

22021000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5469774.

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

Adding to 22021000122 its reverse (22100012022), we get a palindrome (44121012144).

The spelling of 22021000122 in words is "twenty-two billion, twenty-one million, one hundred twenty-two", and thus it is an aban number.