2100111121104 has 40 divisors (see below), whose sum is σ = 5426218845600. Its totient is φ = 699916810368.

The previous prime is 2100111121103. The next prime is 2100111121127. The reversal of 2100111121104 is 4011211110012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100111121103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3474579 + ... + 4033970.

It is an arithmetic number, because the mean of its divisors is an integer number (135655471140).

Almost surely, 2^{2100111121104} is an apocalyptic number.

2100111121104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2100111121104 is an abundant number, since it is smaller than the sum of its proper divisors (3326107724496).

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

2100111121104 is a wasteful number, since it uses less digits than its factorization.

2100111121104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7514387 (or 7514381 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2100111121104 its reverse (4011211110012), we get a palindrome (6111322231116).

The spelling of 2100111121104 in words is "two trillion, one hundred billion, one hundred eleven million, one hundred twenty-one thousand, one hundred four".