1213200212 has 36 divisors (see below), whose sum is σ = 2487811284. Its totient is φ = 516136320.

The previous prime is 1213200199. The next prime is 1213200259. The reversal of 1213200212 is 2120023121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 320624836 + 892575376 = 17906^2 + 29876^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

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 in 11 ways as a sum of consecutive naturals, for example, 4262 + ... + 49442.

It is an arithmetic number, because the mean of its divisors is an integer number (69105869).

Almost surely, 2^1213200212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213200212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1243905642).

1213200212 is an abundant number, since it is smaller than the sum of its proper divisors (1274611072).

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

1213200212 is a wasteful number, since it uses less digits than its factorization.

1213200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45336 (or 45327 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1213200212 is about 34831.0237001441. The cubic root of 1213200212 is about 1066.5408458796.

Adding to 1213200212 its reverse (2120023121), we get a palindrome (3333223333).

The spelling of 1213200212 in words is "one billion, two hundred thirteen million, two hundred thousand, two hundred twelve".