2001112201212 has 48 divisors (see below), whose sum is σ = 4697897181600. Its totient is φ = 662956876800.

The previous prime is 2001112201189. The next prime is 2001112201237. The reversal of 2001112201212 is 2121022111002.

It is a junction number, because it is equal to n+sod(n) for n = 2001112201191 and 2001112201200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 923712 + ... + 2203512.

It is an arithmetic number, because the mean of its divisors is an integer number (97872857950).

Almost surely, 2^{2001112201212} is an apocalyptic number.

It is an amenable number.

2001112201212 is an abundant number, since it is smaller than the sum of its proper divisors (2696784980388).

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

2001112201212 is a wasteful number, since it uses less digits than its factorization.

2001112201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280606 (or 1280604 counting only the distinct ones).

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

Adding to 2001112201212 its reverse (2121022111002), we get a palindrome (4122134312214).

The spelling of 2001112201212 in words is "two trillion, one billion, one hundred twelve million, two hundred one thousand, two hundred twelve".