212021333210 has 16 divisors (see below), whose sum is σ = 404087717736. Its totient is φ = 79819795968.

The previous prime is 212021333207. The next prime is 212021333239. The reversal of 212021333210 is 12333120212.

212021333210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 158126317801 + 53895015409 = 397651^2 + 232153^2 .

It is a super-2 number, since 2×212021333210² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623591987 + ... + 623592326.

Almost surely, 2^212021333210 is an apocalyptic number.

212021333210 is a deficient number, since it is larger than the sum of its proper divisors (192066384526).

212021333210 is a wasteful number, since it uses less digits than its factorization.

212021333210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247184337.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212021333210 its reverse (12333120212), we get a palindrome (224354453422).

The spelling of 212021333210 in words is "two hundred twelve billion, twenty-one million, three hundred thirty-three thousand, two hundred ten".