12022122220 has 48 divisors (see below), whose sum is σ = 27130572000. Its totient is φ = 4458415104.

The previous prime is 12022122163. The next prime is 12022122227. The reversal of 12022122220 is 2222122021.

It is a junction number, because it is equal to n+sod(n) for n = 12022122194 and 12022122203.

It is not an unprimeable number, because it can be changed into a prime (12022122227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241095 + ... + 286654.

It is an arithmetic number, because the mean of its divisors is an integer number (565220250).

Almost surely, 2^12022122220 is an apocalyptic number.

12022122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12022122220 is an abundant number, since it is smaller than the sum of its proper divisors (15108449780).

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

12022122220 is a wasteful number, since it uses less digits than its factorization.

12022122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527842 (or 527840 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12022122220 its reverse (2222122021), we get a palindrome (14244244241).

The spelling of 12022122220 in words is "twelve billion, twenty-two million, one hundred twenty-two thousand, two hundred twenty".