22012121212012 has 6 divisors (see below), whose sum is σ = 38521212121028. Its totient is φ = 11006060606004.

The previous prime is 22012121211967. The next prime is 22012121212031. The reversal of 22012121212012 is 21021212121022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2751515151498 + ... + 2751515151505.

Almost surely, 2^{22012121212012} is an apocalyptic number.

It is an amenable number.

22012121212012 is a deficient number, since it is larger than the sum of its proper divisors (16509090909016).

22012121212012 is a wasteful number, since it uses less digits than its factorization.

22012121212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5503030303007 (or 5503030303005 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22012121212012 its reverse (21021212121022), we get a palindrome (43033333333034).

The spelling of 22012121212012 in words is "twenty-two trillion, twelve billion, one hundred twenty-one million, two hundred twelve thousand, twelve".