212404441421300 has 72 divisors (see below), whose sum is σ = 469677972461880. Its totient is φ = 83354129395200.

The previous prime is 212404441421257. The next prime is 212404441421309. The reversal of 212404441421300 is 3124144404212.

It can be written as a sum of positive squares in 12 ways, for example, as 117449628906724 + 94954812514576 = 10837418^2 + 9744476^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212404441421309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42383399 + ... + 47129198.

Almost surely, 2^{212404441421300} is an apocalyptic number.

212404441421300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212404441421300 is an abundant number, since it is smaller than the sum of its proper divisors (257273531040580).

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

212404441421300 is a wasteful number, since it uses less digits than its factorization.

212404441421300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89513061 (or 89513054 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 212404441421300 its reverse (3124144404212), we get a palindrome (215528585825512).

The spelling of 212404441421300 in words is "two hundred twelve trillion, four hundred four billion, four hundred forty-one million, four hundred twenty-one thousand, three hundred".