12020200002100 has 36 divisors (see below), whose sum is σ = 26139688140384. Its totient is φ = 4797784307680.

The previous prime is 12020200002091. The next prime is 12020200002149. The reversal of 12020200002100 is 120000202021.

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 11 ways as a sum of consecutive naturals, for example, 128649232 + ... + 128742631.

It is an arithmetic number, because the mean of its divisors is an integer number (726102448344).

Almost surely, 2^{12020200002100} is an apocalyptic number.

12020200002100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020200002100 is an abundant number, since it is smaller than the sum of its proper divisors (14119488138284).

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

12020200002100 is a wasteful number, since it uses less digits than its factorization.

12020200002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257392344 (or 257392337 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12020200002100 its reverse (120000202021), we get a palindrome (12140200204121).

The spelling of 12020200002100 in words is "twelve trillion, twenty billion, two hundred million, two thousand, one hundred".