12102101109 has 32 divisors (see below), whose sum is σ = 20552340480. Its totient is φ = 6894558000.

The previous prime is 12102101069. The next prime is 12102101119. The reversal of 12102101109 is 90110120121.

It is a happy number.

It is not a de Polignac number, because 12102101109 - 2⁸ = 12102100853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12102101091 and 12102101100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102101119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34167 + ... + 159284.

It is an arithmetic number, because the mean of its divisors is an integer number (642260640).

Almost surely, 2^12102101109 is an apocalyptic number.

It is an amenable number.

12102101109 is a deficient number, since it is larger than the sum of its proper divisors (8450239371).

12102101109 is a wasteful number, since it uses less digits than its factorization.

12102101109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193798 (or 193792 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 12102101109 in words is "twelve billion, one hundred two million, one hundred one thousand, one hundred nine".