212220200212 has 6 divisors (see below), whose sum is σ = 371385350378. Its totient is φ = 106110100104.

The previous prime is 212220200207. The next prime is 212220200261. The reversal of 212220200212 is 212002022212.

It can be written as a sum of positive squares in only one way, i.e., 209943574416 + 2276625796 = 458196^2 + 47714^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26527525023 + ... + 26527525030.

Almost surely, 2^212220200212 is an apocalyptic number.

It is an amenable number.

212220200212 is a deficient number, since it is larger than the sum of its proper divisors (159165150166).

212220200212 is a wasteful number, since it uses less digits than its factorization.

212220200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53055050057 (or 53055050055 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 212220200212 its reverse (212002022212), we get a palindrome (424222222424).

The spelling of 212220200212 in words is "two hundred twelve billion, two hundred twenty million, two hundred thousand, two hundred twelve".