212100122201200 has 30 divisors (see below), whose sum is σ = 509570543589344. Its totient is φ = 84840048880320.

The previous prime is 212100122201171. The next prime is 212100122201203. The reversal of 212100122201200 is 2102221001212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212100122201203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 265125152352 + ... + 265125153151.

Almost surely, 2^{212100122201200} is an apocalyptic number.

212100122201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212100122201200 is an abundant number, since it is smaller than the sum of its proper divisors (297470421388144).

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

212100122201200 is a wasteful number, since it uses less digits than its factorization.

212100122201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530250305521 (or 530250305510 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212100122201200 its reverse (2102221001212), we get a palindrome (214202343202412).

The spelling of 212100122201200 in words is "two hundred twelve trillion, one hundred billion, one hundred twenty-two million, two hundred one thousand, two hundred".