212211200100 has 72 divisors (see below), whose sum is σ = 614058524128. Its totient is φ = 56584051200.

The previous prime is 212211200063. The next prime is 212211200129. The reversal of 212211200100 is 1002112212.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3643407 + ... + 3701193.

Almost surely, 2^212211200100 is an apocalyptic number.

212211200100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212211200100 is an abundant number, since it is smaller than the sum of its proper divisors (401847324028).

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

212211200100 is a wasteful number, since it uses less digits than its factorization.

212211200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70045 (or 70038 counting only the distinct ones).

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

Adding to 212211200100 its reverse (1002112212), we get a palindrome (213213312312).

The spelling of 212211200100 in words is "two hundred twelve billion, two hundred eleven million, two hundred thousand, one hundred".