210002120212 has 12 divisors (see below), whose sum is σ = 376467215796. Its totient is φ = 102440058560.

The previous prime is 210002120203. The next prime is 210002120219. The reversal of 210002120212 is 212021200012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 115847652496 + 94154467716 = 340364^2 + 306846^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210002120192 and 210002120201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210002120219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640250203 + ... + 640250530.

It is an arithmetic number, because the mean of its divisors is an integer number (31372267983).

Almost surely, 2^210002120212 is an apocalyptic number.

It is an amenable number.

210002120212 is a deficient number, since it is larger than the sum of its proper divisors (166465095584).

210002120212 is a wasteful number, since it uses less digits than its factorization.

210002120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280500778 (or 1280500776 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 210002120212 its reverse (212021200012), we get a palindrome (422023320224).

The spelling of 210002120212 in words is "two hundred ten billion, two million, one hundred twenty thousand, two hundred twelve".