212220200000 has 84 divisors (see below), whose sum is σ = 526372380324. Its totient is φ = 84888000000.

The previous prime is 212220199987. The next prime is 212220200011. The reversal of 212220200000 is 2022212.

It can be written as a sum of positive squares in 6 ways, for example, as 144132603904 + 68087596096 = 379648^2 + 260936^2 .

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, 330551 + ... + 730550.

It is an arithmetic number, because the mean of its divisors is an integer number (6266337861).

Almost surely, 2^212220200000 is an apocalyptic number.

212220200000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212220200000 is an abundant number, since it is smaller than the sum of its proper divisors (314152180324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212220200000 is an frugal number, since it uses more digits than its factorization.

212220200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061138 (or 1061108 counting only the distinct ones).

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

Adding to 212220200000 its reverse (2022212), we get a palindrome (212222222212).

The spelling of 212220200000 in words is "two hundred twelve billion, two hundred twenty million, two hundred thousand".