12100550007 has 64 divisors (see below), whose sum is σ = 21189432320. Its totient is φ = 5963756544.

The previous prime is 12100549999. The next prime is 12100550009. The reversal of 12100550007 is 70005500121.

It is not a de Polignac number, because 12100550007 - 2³ = 12100549999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is the 110003-rd Hogben number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100550009) by changing a digit.

It is a nontrivial repunit in base 110002.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 362673 + ... + 394629.

It is an arithmetic number, because the mean of its divisors is an integer number (331084880).

Almost surely, 2^12100550007 is an apocalyptic number.

12100550007 is a deficient number, since it is larger than the sum of its proper divisors (9088882313).

12100550007 is a wasteful number, since it uses less digits than its factorization.

12100550007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32072.

The product of its (nonzero) digits is 350, while the sum is 21.

The spelling of 12100550007 in words is "twelve billion, one hundred million, five hundred fifty thousand, seven".