2012212100 has 36 divisors (see below), whose sum is σ = 4596320400. Its totient is φ = 762521760.

The previous prime is 2012212093. The next prime is 2012212117. The reversal of 2012212100 is 12122102.

It is a happy 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, 527630 + ... + 531429.

Almost surely, 2^2012212100 is an apocalyptic number.

2012212100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012212100 is an abundant number, since it is smaller than the sum of its proper divisors (2584108300).

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

2012212100 is a wasteful number, since it uses less digits than its factorization.

2012212100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059092 (or 1059085 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2012212100 is about 44857.6871896000. The cubic root of 2012212100 is about 1262.4802284261.

Adding to 2012212100 its reverse (12122102), we get a palindrome (2024334202).

The spelling of 2012212100 in words is "two billion, twelve million, two hundred twelve thousand, one hundred".