2101200011100 has 108 divisors (see below), whose sum is σ = 6614855589160. Its totient is φ = 557873136000.

The previous prime is 2101200011069. The next prime is 2101200011123. The reversal of 2101200011100 is 11100021012.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4891426 + ... + 5303625.

Almost surely, 2^{2101200011100} is an apocalyptic number.

2101200011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101200011100 is an abundant number, since it is smaller than the sum of its proper divisors (4513655578060).

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

2101200011100 is a wasteful number, since it uses less digits than its factorization.

2101200011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10195300 (or 10195290 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 2101200011100 its reverse (11100021012), we get a palindrome (2112300032112).

The spelling of 2101200011100 in words is "two trillion, one hundred one billion, two hundred million, eleven thousand, one hundred".