12122222022 has 20 divisors (see below), whose sum is σ = 27162757116. Its totient is φ = 4040740620.

The previous prime is 12122221981. The next prime is 12122222027. The reversal of 12122222022 is 22022222121.

12122222022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 12122221986 and 12122222004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122222027) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 37414104 + ... + 37414427.

Almost surely, 2^12122222022 is an apocalyptic number.

12122222022 is an abundant number, since it is smaller than the sum of its proper divisors (15040535094).

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

12122222022 is an equidigital number, since it uses as much as digits as its factorization.

12122222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74828545 (or 74828536 counting only the distinct ones).

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

Adding to 12122222022 its reverse (22022222121), we get a palindrome (34144444143).

Subtracting 12122222022 from its reverse (22022222121), we obtain a palindrome (9900000099).

The spelling of 12122222022 in words is "twelve billion, one hundred twenty-two million, two hundred twenty-two thousand, twenty-two".