12212213022 has 80 divisors (see below), whose sum is σ = 28056990192. Its totient is φ = 3968092800.

The previous prime is 12212213011. The next prime is 12212213047. The reversal of 12212213022 is 22031221221.

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 = 12212212986 and 12212213004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4185108 + ... + 4188024.

Almost surely, 2^12212213022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212213022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14028495096).

12212213022 is an abundant number, since it is smaller than the sum of its proper divisors (15844777170).

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

12212213022 is a wasteful number, since it uses less digits than its factorization.

12212213022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575 (or 3566 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12212213022 its reverse (22031221221), we get a palindrome (34243434243).

The spelling of 12212213022 in words is "twelve billion, two hundred twelve million, two hundred thirteen thousand, twenty-two".