2001210001212 has 96 divisors (see below), whose sum is σ = 4801755893760. Its totient is φ = 648386008000.

The previous prime is 2001210001207. The next prime is 2001210001237. The reversal of 2001210001212 is 2121000121002.

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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49102339 + ... + 49143077.

It is an arithmetic number, because the mean of its divisors is an integer number (50018290560).

Almost surely, 2^{2001210001212} is an apocalyptic number.

It is an amenable number.

2001210001212 is an abundant number, since it is smaller than the sum of its proper divisors (2800545892548).

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

2001210001212 is a wasteful number, since it uses less digits than its factorization.

2001210001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41391 (or 41389 counting only the distinct ones).

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

Adding to 2001210001212 its reverse (2121000121002), we get a palindrome (4122210122214).

The spelling of 2001210001212 in words is "two trillion, one billion, two hundred ten million, one thousand, two hundred twelve".