22211100212 has 12 divisors (see below), whose sum is σ = 44422200480. Its totient is φ = 9519042936.

The previous prime is 22211100209. The next prime is 22211100221. The reversal of 22211100212 is 21200111222.

22211100212 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (14).

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 3 ways as a sum of consecutive naturals, for example, 396626762 + ... + 396626817.

It is an arithmetic number, because the mean of its divisors is an integer number (3701850040).

Almost surely, 2^22211100212 is an apocalyptic number.

It is an amenable number.

22211100212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22211100212 is a wasteful number, since it uses less digits than its factorization.

22211100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793253590 (or 793253588 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22211100212 its reverse (21200111222), we get a palindrome (43411211434).

The spelling of 22211100212 in words is "twenty-two billion, two hundred eleven million, one hundred thousand, two hundred twelve".