212030021312 has 28 divisors (see below), whose sum is σ = 420801210720. Its totient is φ = 106001369856.

The previous prime is 212030021297. The next prime is 212030021321. The reversal of 212030021312 is 213120030212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297638 + ... + 715994.

Almost surely, 2^212030021312 is an apocalyptic number.

It is an amenable number.

212030021312 is a deficient number, since it is larger than the sum of its proper divisors (208771189408).

212030021312 is an equidigital number, since it uses as much as digits as its factorization.

212030021312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426288 (or 426278 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212030021312 its reverse (213120030212), we get a palindrome (425150051524).

The spelling of 212030021312 in words is "two hundred twelve billion, thirty million, twenty-one thousand, three hundred twelve".