22222300212 has 192 divisors, whose sum is σ = 69927782400. Its totient is φ = 5961392640.

The previous prime is 22222300151. The next prime is 22222300223. The reversal of 22222300212 is 21200322222.

22222300212 is a `hidden beast` number, since 2 + 222 + 230 + 0 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1616287 + ... + 1629977.

It is an arithmetic number, because the mean of its divisors is an integer number (364207200).

Almost surely, 2^22222300212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22222300212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34963891200).

22222300212 is an abundant number, since it is smaller than the sum of its proper divisors (47705482188).

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

22222300212 is a wasteful number, since it uses less digits than its factorization.

22222300212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13843 (or 13835 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22222300212 its reverse (21200322222), we get a palindrome (43422622434).

The spelling of 22222300212 in words is "twenty-two billion, two hundred twenty-two million, three hundred thousand, two hundred twelve".