109106388012 has 12 divisors (see below), whose sum is σ = 254581572056. Its totient is φ = 36368796000.

The previous prime is 109106387981. The next prime is 109106388019. The reversal of 109106388012 is 210883601901.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (109106388019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4546099489 + ... + 4546099512.

Almost surely, 2^109106388012 is an apocalyptic number.

109106388012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

109106388012 is an abundant number, since it is smaller than the sum of its proper divisors (145475184044).

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

109106388012 is a wasteful number, since it uses less digits than its factorization.

109106388012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9092199008 (or 9092199006 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

Adding to 109106388012 its reverse (210883601901), we get a palindrome (319989989913).

The spelling of 109106388012 in words is "one hundred nine billion, one hundred six million, three hundred eighty-eight thousand, twelve".