12105575026 has 4 divisors (see below), whose sum is σ = 18158362542. Its totient is φ = 6052787512.

The previous prime is 12105575023. The next prime is 12105575029. The reversal of 12105575026 is 62057550121.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12105575023) and next prime (12105575029).

It can be written as a sum of positive squares in only one way, i.e., 11891684401 + 213890625 = 109049^2 + 14625^2 .

It is a super-2 number, since 2×12105575026² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12105574982 and 12105575000.

It is not an unprimeable number, because it can be changed into a prime (12105575023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3026393755 + ... + 3026393758.

Almost surely, 2^12105575026 is an apocalyptic number.

12105575026 is a deficient number, since it is larger than the sum of its proper divisors (6052787516).

12105575026 is an equidigital number, since it uses as much as digits as its factorization.

12105575026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052787515.

The product of its (nonzero) digits is 21000, while the sum is 34.

The spelling of 12105575026 in words is "twelve billion, one hundred five million, five hundred seventy-five thousand, twenty-six".