212312111230 has 8 divisors (see below), whose sum is σ = 382161800232. Its totient is φ = 84924844488.

The previous prime is 212312111173. The next prime is 212312111239. The reversal of 212312111230 is 32111213212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×212312111230² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212312111198 and 212312111207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212312111239) 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, 10615605552 + ... + 10615605571.

It is an arithmetic number, because the mean of its divisors is an integer number (47770225029).

Almost surely, 2^212312111230 is an apocalyptic number.

212312111230 is a deficient number, since it is larger than the sum of its proper divisors (169849689002).

212312111230 is a wasteful number, since it uses less digits than its factorization.

212312111230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21231211130.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212312111230 its reverse (32111213212), we get a palindrome (244423324442).

The spelling of 212312111230 in words is "two hundred twelve billion, three hundred twelve million, one hundred eleven thousand, two hundred thirty".