12102101100111 has 24 divisors (see below), whose sum is σ = 17906470095744. Its totient is φ = 7210291290640.

The previous prime is 12102101100107. The next prime is 12102101100127. The reversal of 12102101100111 is 11100110120121.

It is not a de Polignac number, because 12102101100111 - 2² = 12102101100107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102101100181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52561131 + ... + 52790876.

It is an arithmetic number, because the mean of its divisors is an integer number (746102920656).

Almost surely, 2^{12102101100111} is an apocalyptic number.

12102101100111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12102101100111 is a deficient number, since it is larger than the sum of its proper divisors (5804368995633).

12102101100111 is a wasteful number, since it uses less digits than its factorization.

12102101100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105352139 (or 105352080 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 12102101100111 its reverse (11100110120121), we get a palindrome (23202211220232).

The spelling of 12102101100111 in words is "twelve trillion, one hundred two billion, one hundred one million, one hundred thousand, one hundred eleven".