212331021312230 has 64 divisors (see below), whose sum is σ = 426011772418560. Its totient is φ = 75722986520064.

The previous prime is 212331021312187. The next prime is 212331021312257. The reversal of 212331021312230 is 32213120133212.

It is a super-2 number, since 2×212331021312230² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212331021312230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36722207 + ... + 42109173.

It is an arithmetic number, because the mean of its divisors is an integer number (6656433944040).

Almost surely, 2^{212331021312230} is an apocalyptic number.

212331021312230 is an abundant number, since it is smaller than the sum of its proper divisors (213680751106330).

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

212331021312230 is a wasteful number, since it uses less digits than its factorization.

212331021312230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5399213.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 212331021312230 its reverse (32213120133212), we get a palindrome (244544141445442).

The spelling of 212331021312230 in words is "two hundred twelve trillion, three hundred thirty-one billion, twenty-one million, three hundred twelve thousand, two hundred thirty".