2102020112200 has 48 divisors (see below), whose sum is σ = 4888920744180. Its totient is φ = 840511445760.

The previous prime is 2102020112111. The next prime is 2102020112207. The reversal of 2102020112200 is 22110202012.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 859851907524 + 1242168204676 = 927282^2 + 1114526^2 .

It is not an unprimeable number, because it can be changed into a prime (2102020112207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1284927 + ... + 2419726.

Almost surely, 2^{2102020112200} is an apocalyptic number.

2102020112200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102020112200 is an abundant number, since it is smaller than the sum of its proper divisors (2786900631980).

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

2102020112200 is a wasteful number, since it uses less digits than its factorization.

2102020112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707506 (or 3707497 counting only the distinct ones).

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

Adding to 2102020112200 its reverse (22110202012), we get a palindrome (2124130314212).

The spelling of 2102020112200 in words is "two trillion, one hundred two billion, twenty million, one hundred twelve thousand, two hundred".