2001100212 has 36 divisors (see below), whose sum is σ = 5088641376. Its totient is φ = 663037200.

The previous prime is 2001100207. The next prime is 2001100237. The reversal of 2001100212 is 2120011002.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2001100194 and 2001100203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160414 + ... + 172437.

Almost surely, 2^2001100212 is an apocalyptic number.

It is an amenable number.

2001100212 is an abundant number, since it is smaller than the sum of its proper divisors (3087541164).

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

2001100212 is a wasteful number, since it uses less digits than its factorization.

2001100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333028 (or 333023 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2001100212 is about 44733.6586028910. The cubic root of 2001100212 is about 1260.1520375872.

Adding to 2001100212 its reverse (2120011002), we get a palindrome (4121111214).

The spelling of 2001100212 in words is "two billion, one million, one hundred thousand, two hundred twelve".