12022212012 has 12 divisors (see below), whose sum is σ = 28051828056. Its totient is φ = 4007404000.

The previous prime is 12022211969. The next prime is 12022212047. The reversal of 12022212012 is 21021222021.

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

It is a super-2 number, since 2×12022212012² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12022211982 and 12022212000.

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, 500925489 + ... + 500925512.

It is an arithmetic number, because the mean of its divisors is an integer number (2337652338).

Almost surely, 2^12022212012 is an apocalyptic number.

12022212012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12022212012 is an abundant number, since it is smaller than the sum of its proper divisors (16029616044).

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

12022212012 is a wasteful number, since it uses less digits than its factorization.

12022212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001851008 (or 1001851006 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12022212012 its reverse (21021222021), we get a palindrome (33043434033).

The spelling of 12022212012 in words is "twelve billion, twenty-two million, two hundred twelve thousand, twelve".