212021032210312 has 128 divisors (see below), whose sum is σ = 459817564147200. Its totient is φ = 90776751206400.

The previous prime is 212021032210283. The next prime is 212021032210313. The reversal of 212021032210312 is 213012230120212.

It is not an unprimeable number, because it can be changed into a prime (212021032210313) 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, 446516862 + ... + 446991442.

It is an arithmetic number, because the mean of its divisors is an integer number (3592324719900).

Almost surely, 2^{212021032210312} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212021032210312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229908782073600).

212021032210312 is an abundant number, since it is smaller than the sum of its proper divisors (247796531936888).

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

212021032210312 is a wasteful number, since it uses less digits than its factorization.

212021032210312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478247 (or 478243 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 212021032210312 its reverse (213012230120212), we get a palindrome (425033262330524).

The spelling of 212021032210312 in words is "two hundred twelve trillion, twenty-one billion, thirty-two million, two hundred ten thousand, three hundred twelve".