22212344412 has 18 divisors (see below), whose sum is σ = 56147870688. Its totient is φ = 7404114792.

The previous prime is 22212344389. The next prime is 22212344491. The reversal of 22212344412 is 21444321222.

It is a happy number.

22212344412 is a `hidden beast` number, since 2 + 2 + 212 + 3 + 4 + 441 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 308504748 + ... + 308504819.

Almost surely, 2^22212344412 is an apocalyptic number.

It is an amenable number.

22212344412 is an abundant number, since it is smaller than the sum of its proper divisors (33935526276).

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

22212344412 is a wasteful number, since it uses less digits than its factorization.

22212344412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617009577 (or 617009572 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

Adding to 22212344412 its reverse (21444321222), we get a palindrome (43656665634).

The spelling of 22212344412 in words is "twenty-two billion, two hundred twelve million, three hundred forty-four thousand, four hundred twelve".