212242230321 has 32 divisors (see below), whose sum is σ = 312048616320. Its totient is φ = 127245312000.

The previous prime is 212242230293. The next prime is 212242230331. The reversal of 212242230321 is 123032242212.

It is not a de Polignac number, because 212242230321 - 2⁵ = 212242230289 is a prime.

It is a super-4 number, since 4×212242230321⁴ (a number of 46 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212242230291 and 212242230300.

It is not an unprimeable number, because it can be changed into a prime (212242230331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3815335 + ... + 3870563.

It is an arithmetic number, because the mean of its divisors is an integer number (9751519260).

Almost surely, 2^212242230321 is an apocalyptic number.

It is an amenable number.

212242230321 is a deficient number, since it is larger than the sum of its proper divisors (99806385999).

212242230321 is a wasteful number, since it uses less digits than its factorization.

212242230321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56497.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 212242230321 its reverse (123032242212), we get a palindrome (335274472533).

The spelling of 212242230321 in words is "two hundred twelve billion, two hundred forty-two million, two hundred thirty thousand, three hundred twenty-one".