22021200212012 has 6 divisors (see below), whose sum is σ = 38537100371028. Its totient is φ = 11010600106004.

The previous prime is 22021200212003. The next prime is 22021200212027. The reversal of 22021200212012 is 21021200212022.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2752650026498 + ... + 2752650026505.

It is an arithmetic number, because the mean of its divisors is an integer number (6422850061838).

Almost surely, 2^{22021200212012} is an apocalyptic number.

It is an amenable number.

22021200212012 is a deficient number, since it is larger than the sum of its proper divisors (16515900159016).

22021200212012 is a wasteful number, since it uses less digits than its factorization.

22021200212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5505300053007 (or 5505300053005 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22021200212012 its reverse (21021200212022), we get a palindrome (43042400424034).

The spelling of 22021200212012 in words is "twenty-two trillion, twenty-one billion, two hundred million, two hundred twelve thousand, twelve".