212144320 has 28 divisors (see below), whose sum is σ = 505169424. Its totient is φ = 84857600.

The previous prime is 212144293. The next prime is 212144321. The reversal of 212144320 is 23441212.

It is not an unprimeable number, because it can be changed into a prime (212144321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331156 + ... + 331795.

Almost surely, 2^212144320 is an apocalyptic number.

212144320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212144320 is an abundant number, since it is smaller than the sum of its proper divisors (293025104).

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

212144320 is an equidigital number, since it uses as much as digits as its factorization.

212144320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662968 (or 662958 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 212144320 is about 14565.1749045454. The cubic root of 212144320 is about 596.4084703463.

Adding to 212144320 its reverse (23441212), we get a palindrome (235585532).

The spelling of 212144320 in words is "two hundred twelve million, one hundred forty-four thousand, three hundred twenty".