12022220220 has 24 divisors (see below), whose sum is σ = 33662216784. Its totient is φ = 3205925376.

The previous prime is 12022220213. The next prime is 12022220263. The reversal of 12022220220 is 2202222021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12022220220.

It is a congruent number.

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, 100185109 + ... + 100185228.

It is an arithmetic number, because the mean of its divisors is an integer number (1402592366).

Almost surely, 2^12022220220 is an apocalyptic number.

12022220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12022220220 is an abundant number, since it is smaller than the sum of its proper divisors (21639996564).

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

12022220220 is a wasteful number, since it uses less digits than its factorization.

12022220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200370349 (or 200370347 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 12022220220 its reverse (2202222021), we get a palindrome (14224442241).

The spelling of 12022220220 in words is "twelve billion, twenty-two million, two hundred twenty thousand, two hundred twenty".