212144220232 has 32 divisors (see below), whose sum is σ = 454647744000. Its totient is φ = 90908354304.

The previous prime is 212144220229. The next prime is 212144220251. The reversal of 212144220232 is 232022441212.

It is a junction number, because it is equal to n+sod(n) for n = 212144220197 and 212144220206.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 273769 + ... + 706567.

It is an arithmetic number, because the mean of its divisors is an integer number (14207742000).

Almost surely, 2^212144220232 is an apocalyptic number.

It is an amenable number.

212144220232 is an abundant number, since it is smaller than the sum of its proper divisors (242503523768).

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

212144220232 is a wasteful number, since it uses less digits than its factorization.

212144220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441565 (or 441561 counting only the distinct ones).

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

Adding to 212144220232 its reverse (232022441212), we get a palindrome (444166661444).

The spelling of 212144220232 in words is "two hundred twelve billion, one hundred forty-four million, two hundred twenty thousand, two hundred thirty-two".