2100200221212 has 48 divisors (see below), whose sum is σ = 5229049378560. Its totient is φ = 654135896448.

The previous prime is 2100200221181. The next prime is 2100200221271. The reversal of 2100200221212 is 2121220020012.

It is a junction number, because it is equal to n+sod(n) for n = 2100200221191 and 2100200221200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63075168 + ... + 63108455.

It is an arithmetic number, because the mean of its divisors is an integer number (108938528720).

Almost surely, 2^{2100200221212} is an apocalyptic number.

It is an amenable number.

2100200221212 is an abundant number, since it is smaller than the sum of its proper divisors (3128849157348).

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

2100200221212 is a wasteful number, since it uses less digits than its factorization.

2100200221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126183722 (or 126183720 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2100200221212 its reverse (2121220020012), we get a palindrome (4221420241224).

The spelling of 2100200221212 in words is "two trillion, one hundred billion, two hundred million, two hundred twenty-one thousand, two hundred twelve".