212404412320 has 96 divisors (see below), whose sum is σ = 519656860800. Its totient is φ = 81945486336.

The previous prime is 212404412317. The next prime is 212404412321. The reversal of 212404412320 is 23214404212.

It is not an unprimeable number, because it can be changed into a prime (212404412321) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4463211 + ... + 4510549.

It is an arithmetic number, because the mean of its divisors is an integer number (5413092300).

Almost surely, 2^212404412320 is an apocalyptic number.

212404412320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212404412320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259828430400).

212404412320 is an abundant number, since it is smaller than the sum of its proper divisors (307252448480).

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

212404412320 is a wasteful number, since it uses less digits than its factorization.

212404412320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48350 (or 48342 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 212404412320 its reverse (23214404212), we get a palindrome (235618816532).

The spelling of 212404412320 in words is "two hundred twelve billion, four hundred four million, four hundred twelve thousand, three hundred twenty".