1002111210100 has 144 divisors (see below), whose sum is σ = 2919717876096. Its totient is φ = 288319680000.

The previous prime is 1002111209947. The next prime is 1002111210137. The reversal of 1002111210100 is 10121112001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4905451 + ... + 5105650.

It is an arithmetic number, because the mean of its divisors is an integer number (20275818584).

Almost surely, 2^{1002111210100} is an apocalyptic number.

1002111210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002111210100 is an abundant number, since it is smaller than the sum of its proper divisors (1917606665996).

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

1002111210100 is a wasteful number, since it uses less digits than its factorization.

1002111210100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10011146 (or 10011139 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1002111210100 its reverse (10121112001), we get a palindrome (1012232322101).

The spelling of 1002111210100 in words is "one trillion, two billion, one hundred eleven million, two hundred ten thousand, one hundred".