12022002220 has 24 divisors (see below), whose sum is σ = 25378391808. Its totient is φ = 4783622400.

The previous prime is 12022002211. The next prime is 12022002233. The reversal of 12022002220 is 2220022021.

It is a self number, because there is not a number n which added to its sum of digits gives 12022002220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1569741 + ... + 1577380.

It is an arithmetic number, because the mean of its divisors is an integer number (1057432992).

Almost surely, 2^12022002220 is an apocalyptic number.

12022002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12022002220 is an abundant number, since it is smaller than the sum of its proper divisors (13356389588).

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

12022002220 is a wasteful number, since it uses less digits than its factorization.

12022002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147321 (or 3147319 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 12022002220 its reverse (2220022021), we get a palindrome (14242024241).

The spelling of 12022002220 in words is "twelve billion, twenty-two million, two thousand, two hundred twenty".