212351430400 has 54 divisors (see below), whose sum is σ = 525602985992. Its totient is φ = 84940569600.

The previous prime is 212351430359. The next prime is 212351430409. The reversal of 212351430400 is 4034153212.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212351430409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16583556 + ... + 16596355.

Almost surely, 2^212351430400 is an apocalyptic number.

212351430400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212351430400 is an abundant number, since it is smaller than the sum of its proper divisors (313251555592).

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

212351430400 is an equidigital number, since it uses as much as digits as its factorization.

212351430400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33179937 (or 33179918 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 212351430400 its reverse (4034153212), we get a palindrome (216385583612).

The spelling of 212351430400 in words is "two hundred twelve billion, three hundred fifty-one million, four hundred thirty thousand, four hundred".