2001210100212 has 24 divisors (see below), whose sum is σ = 4669612127712. Its totient is φ = 667052620000.

The previous prime is 2001210100199. The next prime is 2001210100223. The reversal of 2001210100212 is 2120010121002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1693539 + ... + 2621162.

It is an arithmetic number, because the mean of its divisors is an integer number (194567171988).

Almost surely, 2^{2001210100212} is an apocalyptic number.

It is an amenable number.

2001210100212 is an abundant number, since it is smaller than the sum of its proper divisors (2668402027500).

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

2001210100212 is a wasteful number, since it uses less digits than its factorization.

2001210100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353359 (or 4353357 counting only the distinct ones).

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

Adding to 2001210100212 its reverse (2120010121002), we get a palindrome (4121220221214).

The spelling of 2001210100212 in words is "two trillion, one billion, two hundred ten million, one hundred thousand, two hundred twelve".