231212213230222 has 16 divisors (see below), whose sum is σ = 396398493130752. Its totient is φ = 99082273771800.

The previous prime is 231212213230183. The next prime is 231212213230267. The reversal of 231212213230222 is 222032312212132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722730654 + ... + 723050497.

It is an arithmetic number, because the mean of its divisors is an integer number (24774905820672).

Almost surely, 2^{231212213230222} is an apocalyptic number.

231212213230222 is a deficient number, since it is larger than the sum of its proper divisors (165186279900530).

231212213230222 is a wasteful number, since it uses less digits than its factorization.

231212213230222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445792583.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 231212213230222 its reverse (222032312212132), we get a palindrome (453244525442354).

The spelling of 231212213230222 in words is "two hundred thirty-one trillion, two hundred twelve billion, two hundred thirteen million, two hundred thirty thousand, two hundred twenty-two".