22111200212 has 48 divisors (see below), whose sum is σ = 41680488528. Its totient is φ = 10225336320.

The previous prime is 22111200193. The next prime is 22111200227. The reversal of 22111200212 is 21200211122.

It can be written as a sum of positive squares in 8 ways, for example, as 4268356 + 22106931856 = 2066^2 + 148684^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6871628 + ... + 6874844.

It is an arithmetic number, because the mean of its divisors is an integer number (868343511).

Almost surely, 2^22111200212 is an apocalyptic number.

It is an amenable number.

22111200212 is a deficient number, since it is larger than the sum of its proper divisors (19569288316).

22111200212 is a wasteful number, since it uses less digits than its factorization.

22111200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4956 (or 4954 counting only the distinct ones).

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

Adding to 22111200212 its reverse (21200211122), we get a palindrome (43311411334).

The spelling of 22111200212 in words is "twenty-two billion, one hundred eleven million, two hundred thousand, two hundred twelve".