12022003212 has 12 divisors (see below), whose sum is σ = 28051340856. Its totient is φ = 4007334400.

The previous prime is 12022003199. The next prime is 12022003243. The reversal of 12022003212 is 21230022021.

It is a happy number.

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

It is a super-2 number, since 2×12022003212² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12022003191 and 12022003200.

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, 500916789 + ... + 500916812.

It is an arithmetic number, because the mean of its divisors is an integer number (2337611738).

Almost surely, 2^12022003212 is an apocalyptic number.

12022003212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12022003212 is an abundant number, since it is smaller than the sum of its proper divisors (16029337644).

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

12022003212 is a wasteful number, since it uses less digits than its factorization.

12022003212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001833608 (or 1001833606 counting only the distinct ones).

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

Adding to 12022003212 its reverse (21230022021), we get a palindrome (33252025233).

The spelling of 12022003212 in words is "twelve billion, twenty-two million, three thousand, two hundred twelve".