1210002200100 has 144 divisors (see below), whose sum is σ = 3890411831040. Its totient is φ = 322627536000.

The previous prime is 1210002200087. The next prime is 1210002200129. The reversal of 1210002200100 is 10022000121.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26710069 + ... + 26755331.

Almost surely, 2^{1210002200100} is an apocalyptic number.

1210002200100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210002200100 is an abundant number, since it is smaller than the sum of its proper divisors (2680409630940).

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

1210002200100 is a wasteful number, since it uses less digits than its factorization.

1210002200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55187 (or 55174 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1210002200100 its reverse (10022000121), we get a palindrome (1220024200221).

The spelling of 1210002200100 in words is "one trillion, two hundred ten billion, two million, two hundred thousand, one hundred".