212200240400000 has 96 divisors (see below), whose sum is σ = 528394514610060. Its totient is φ = 84880096000000.

The previous prime is 212200240399949. The next prime is 212200240400081. The reversal of 212200240400000 is 4042002212.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 85089407769664 + 127110832630336 = 9224392^2 + 11274344^2 .

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, 264850301 + ... + 265650300.

Almost surely, 2^{212200240400000} is an apocalyptic number.

212200240400000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212200240400000 is an abundant number, since it is smaller than the sum of its proper divisors (316194274210060).

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

212200240400000 is an frugal number, since it uses more digits than its factorization.

212200240400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530500640 (or 530500608 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 212200240400000 its reverse (4042002212), we get a palindrome (212204282402212).

The spelling of 212200240400000 in words is "two hundred twelve trillion, two hundred billion, two hundred forty million, four hundred thousand".