12220302012 has 12 divisors (see below), whose sum is σ = 28514038056. Its totient is φ = 4073434000.

The previous prime is 12220301999. The next prime is 12220302023. The reversal of 12220302012 is 21020302221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 12220301982 and 12220302000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509179239 + ... + 509179262.

It is an arithmetic number, because the mean of its divisors is an integer number (2376169838).

Almost surely, 2^12220302012 is an apocalyptic number.

12220302012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12220302012 is an abundant number, since it is smaller than the sum of its proper divisors (16293736044).

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

12220302012 is a wasteful number, since it uses less digits than its factorization.

12220302012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018358508 (or 1018358506 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12220302012 its reverse (21020302221), we get a palindrome (33240604233).

The spelling of 12220302012 in words is "twelve billion, two hundred twenty million, three hundred two thousand, twelve".