12222210212012 has 12 divisors (see below), whose sum is σ = 21442206696456. Its totient is φ = 6095865441600.

The previous prime is 12222210211963. The next prime is 12222210212021. The reversal of 12222210212012 is 21021201222221.

It is a super-2 number, since 2×12222210212012² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3809914298 + ... + 3809917505.

It is an arithmetic number, because the mean of its divisors is an integer number (1786850558038).

Almost surely, 2^{12222210212012} is an apocalyptic number.

It is an amenable number.

12222210212012 is a deficient number, since it is larger than the sum of its proper divisors (9219996484444).

12222210212012 is a wasteful number, since it uses less digits than its factorization.

12222210212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7619832208 (or 7619832206 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12222210212012 its reverse (21021201222221), we get a palindrome (33243411434233).

The spelling of 12222210212012 in words is "twelve trillion, two hundred twenty-two billion, two hundred ten million, two hundred twelve thousand, twelve".