210001012212 has 12 divisors (see below), whose sum is σ = 490002361856. Its totient is φ = 70000337400.

The previous prime is 210001012171. The next prime is 210001012213. The reversal of 210001012212 is 212210100012.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 17500084351 = 210001012212 / (2 + 1 + 0 + 0 + 0 + 1 + 0 + 1 + 2 + 2 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210001012213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8750042164 + ... + 8750042187.

Almost surely, 2^210001012212 is an apocalyptic number.

It is an amenable number.

210001012212 is an abundant number, since it is smaller than the sum of its proper divisors (280001349644).

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

210001012212 is a wasteful number, since it uses less digits than its factorization.

210001012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17500084358 (or 17500084356 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210001012212 its reverse (212210100012), we get a palindrome (422211112224).

The spelling of 210001012212 in words is "two hundred ten billion, one million, twelve thousand, two hundred twelve".