2001112212 has 48 divisors (see below), whose sum is σ = 5096577024. Its totient is φ = 606060000.

The previous prime is 2001112207. The next prime is 2001112213. The reversal of 2001112212 is 2122111002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001112213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339087 + ... + 344937.

It is an arithmetic number, because the mean of its divisors is an integer number (106178688).

Almost surely, 2^2001112212 is an apocalyptic number.

2001112212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2001112212 is an abundant number, since it is smaller than the sum of its proper divisors (3095464812).

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

2001112212 is a wasteful number, since it uses less digits than its factorization.

2001112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8460 (or 8458 counting only the distinct ones).

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

The square root of 2001112212 is about 44733.7927298815. The cubic root of 2001112212 is about 1260.1545565005.

Adding to 2001112212 its reverse (2122111002), we get a palindrome (4123223214).

It can be divided in two parts, 20011 and 12212, that added together give a palindrome (32223).

The spelling of 2001112212 in words is "two billion, one million, one hundred twelve thousand, two hundred twelve".