2102200121200 has 30 divisors (see below), whose sum is σ = 5050535792144. Its totient is φ = 840880048320.

The previous prime is 2102200121171. The next prime is 2102200121201. The reversal of 2102200121200 is 21210022012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102200121201) 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, 2627749752 + ... + 2627750551.

Almost surely, 2^{2102200121200} is an apocalyptic number.

2102200121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102200121200 is an abundant number, since it is smaller than the sum of its proper divisors (2948335670944).

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

2102200121200 is a wasteful number, since it uses less digits than its factorization.

2102200121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5255500321 (or 5255500310 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2102200121200 its reverse (21210022012), we get a palindrome (2123410143212).

The spelling of 2102200121200 in words is "two trillion, one hundred two billion, two hundred million, one hundred twenty-one thousand, two hundred".