2001110221212 has 48 divisors (see below), whose sum is σ = 4724730259200. Its totient is φ = 659121569920.

The previous prime is 2001110221163. The next prime is 2001110221223. The reversal of 2001110221212 is 2121220111002.

It is a junction number, because it is equal to n+sod(n) for n = 2001110221191 and 2001110221200.

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 15 ways as a sum of consecutive naturals, for example, 1081489 + ... + 2274167.

It is an arithmetic number, because the mean of its divisors is an integer number (98431880400).

Almost surely, 2^{2001110221212} is an apocalyptic number.

It is an amenable number.

2001110221212 is an abundant number, since it is smaller than the sum of its proper divisors (2723620037988).

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

2001110221212 is a wasteful number, since it uses less digits than its factorization.

2001110221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194346 (or 1194344 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2001110221212 its reverse (2121220111002), we get a palindrome (4122330332214).

The spelling of 2001110221212 in words is "two trillion, one billion, one hundred ten million, two hundred twenty-one thousand, two hundred twelve".