22200000212 has 36 divisors (see below), whose sum is σ = 42174819036. Its totient is φ = 10220221440.

The previous prime is 22200000191. The next prime is 22200000233. The reversal of 22200000212 is 21200000222.

It is an interprime number because it is at equal distance from previous prime (22200000191) and next prime (22200000233).

It can be written as a sum of positive squares in 6 ways, for example, as 5121692356 + 17078307856 = 71566^2 + 130684^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22200000193 and 22200000202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227012 + ... + 309732.

It is an arithmetic number, because the mean of its divisors is an integer number (1171522751).

Almost surely, 2^22200000212 is an apocalyptic number.

It is an amenable number.

22200000212 is a deficient number, since it is larger than the sum of its proper divisors (19974818824).

22200000212 is a wasteful number, since it uses less digits than its factorization.

22200000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83148 (or 83133 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 22200000212 its reverse (21200000222), we get a palindrome (43400000434).

The spelling of 22200000212 in words is "twenty-two billion, two hundred million, two hundred twelve", and thus it is an aban number.