22211000212 has 24 divisors (see below), whose sum is σ = 39236711976. Its totient is φ = 11000629248.

The previous prime is 22211000197. The next prime is 22211000257. The reversal of 22211000212 is 21200011222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1749414276 + 20461585936 = 41826^2 + 143044^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22211000192 and 22211000201.

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, 789378 + ... + 817030.

It is an arithmetic number, because the mean of its divisors is an integer number (1634862999).

Almost surely, 2^22211000212 is an apocalyptic number.

It is an amenable number.

22211000212 is a deficient number, since it is larger than the sum of its proper divisors (17025711764).

22211000212 is a wasteful number, since it uses less digits than its factorization.

22211000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29547 (or 29545 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22211000212 its reverse (21200011222), we get a palindrome (43411011434).

The spelling of 22211000212 in words is "twenty-two billion, two hundred eleven million, two hundred twelve", and thus it is an aban number.