22011200212 has 6 divisors (see below), whose sum is σ = 38519600378. Its totient is φ = 11005600104.

The previous prime is 22011200209. The next prime is 22011200249. The reversal of 22011200212 is 21200211022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11396843536 + 10614356676 = 106756^2 + 103026^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22011200192 and 22011200201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2751400023 + ... + 2751400030.

Almost surely, 2^22011200212 is an apocalyptic number.

It is an amenable number.

22011200212 is a deficient number, since it is larger than the sum of its proper divisors (16508400166).

22011200212 is a wasteful number, since it uses less digits than its factorization.

22011200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5502800057 (or 5502800055 counting only the distinct ones).

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

Adding to 22011200212 its reverse (21200211022), we get a palindrome (43211411234).

The spelling of 22011200212 in words is "twenty-two billion, eleven million, two hundred thousand, two hundred twelve".