20221222122 has 24 divisors (see below), whose sum is σ = 43842489600. Its totient is φ = 6735816360.

The previous prime is 20221222117. The next prime is 20221222141. The reversal of 20221222122 is 22122212202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20221222095 and 20221222104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 355372 + ... + 408327.

It is an arithmetic number, because the mean of its divisors is an integer number (1826770400).

Almost surely, 2^20221222122 is an apocalyptic number.

20221222122 is an abundant number, since it is smaller than the sum of its proper divisors (23621267478).

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

20221222122 is a wasteful number, since it uses less digits than its factorization.

20221222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765178 (or 765175 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20221222122 its reverse (22122212202), we get a palindrome (42343434324).

The spelling of 20221222122 in words is "twenty billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-two".