210001112212 has 6 divisors (see below), whose sum is σ = 367501946378. Its totient is φ = 105000556104.

The previous prime is 210001112207. The next prime is 210001112221. The reversal of 210001112212 is 212211100012.

It can be written as a sum of positive squares in only one way, i.e., 201353228176 + 8647884036 = 448724^2 + 92994^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210001112192 and 210001112201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26250139023 + ... + 26250139030.

Almost surely, 2^210001112212 is an apocalyptic number.

It is an amenable number.

210001112212 is a deficient number, since it is larger than the sum of its proper divisors (157500834166).

210001112212 is a wasteful number, since it uses less digits than its factorization.

210001112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52500278057 (or 52500278055 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210001112212 its reverse (212211100012), we get a palindrome (422212212224).

The spelling of 210001112212 in words is "two hundred ten billion, one million, one hundred twelve thousand, two hundred twelve".