12122670609 has 63 divisors (see below), whose sum is σ = 20621628937. Its totient is φ = 6862499784.

The previous prime is 12122670589. The next prime is 12122670629. The reversal of 12122670609 is 90607622121.

The square root of 12122670609 is 110103.

It is a perfect power (a square), and thus also a powerful number.

12122670609 is a `hidden beast` number, since 1 + 21 + 2 + 26 + 7 + 0 + 609 = 666.

It is an interprime number because it is at equal distance from previous prime (12122670589) and next prime (12122670629).

It is a tau number, because it is divible by the number of its divisors (63).

It is not a de Polignac number, because 12122670609 - 2⁵ = 12122670577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12122670629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 113295934 + ... + 113296040.

Almost surely, 2^12122670609 is an apocalyptic number.

12122670609 is the 110103-rd square number.

12122670609 is the 55052-nd centered octagonal number.

It is an amenable number.

12122670609 is a deficient number, since it is larger than the sum of its proper divisors (8498958328).

12122670609 is an frugal number, since it uses more digits than its factorization.

12122670609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

Multiplying 12122670609 by its sum of digits (36), we get a square (436416141924 = 660618²).

The spelling of 12122670609 in words is "twelve billion, one hundred twenty-two million, six hundred seventy thousand, six hundred nine".