1001100212 has 12 divisors (see below), whose sum is σ = 2002200480. Its totient is φ = 429042936.

The previous prime is 1001100179. The next prime is 1001100223. The reversal of 1001100212 is 2120011001.

1001100212 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001100212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17876762 + ... + 17876817.

It is an arithmetic number, because the mean of its divisors is an integer number (166850040).

Almost surely, 2^1001100212 is an apocalyptic number.

It is an amenable number.

1001100212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1001100212 is a wasteful number, since it uses less digits than its factorization.

1001100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35753590 (or 35753588 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1001100212 is about 31640.1676986706. The cubic root of 1001100212 is about 1000.3666029192.

Adding to 1001100212 its reverse (2120011001), we get a palindrome (3121111213).

The spelling of 1001100212 in words is "one billion, one million, one hundred thousand, two hundred twelve".