2121220110200 has 24 divisors (see below), whose sum is σ = 4931836756680. Its totient is φ = 848488044000.

The previous prime is 2121220110181. The next prime is 2121220110227. The reversal of 2121220110200 is 20110221212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5303050076 + ... + 5303050475.

It is an arithmetic number, because the mean of its divisors is an integer number (205493198195).

Almost surely, 2^{2121220110200} is an apocalyptic number.

2121220110200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121220110200 is an abundant number, since it is smaller than the sum of its proper divisors (2810616646480).

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

2121220110200 is a wasteful number, since it uses less digits than its factorization.

2121220110200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10606100567 (or 10606100558 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2121220110200 its reverse (20110221212), we get a palindrome (2141330331412).

The spelling of 2121220110200 in words is "two trillion, one hundred twenty-one billion, two hundred twenty million, one hundred ten thousand, two hundred".