22012021022012 has 24 divisors (see below), whose sum is σ = 44770212251520. Its totient is φ = 9273829679280.

The previous prime is 22012021021993. The next prime is 22012021022041. The reversal of 22012021022012 is 21022012021022.

It is a happy number.

It is a congruent 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 in 7 ways as a sum of consecutive naturals, for example, 6662232314 + ... + 6662235617.

It is an arithmetic number, because the mean of its divisors is an integer number (1865425510480).

Almost surely, 2^{22012021022012} is an apocalyptic number.

It is an amenable number.

22012021022012 is an abundant number, since it is smaller than the sum of its proper divisors (22758191229508).

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

22012021022012 is a wasteful number, since it uses less digits than its factorization.

22012021022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13324468001 (or 13324467999 counting only the distinct ones).

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

Adding to 22012021022012 its reverse (21022012021022), we get a palindrome (43034033043034).

The spelling of 22012021022012 in words is "twenty-two trillion, twelve billion, twenty-one million, twenty-two thousand, twelve".