12207321605 has 8 divisors (see below), whose sum is σ = 14663693952. Its totient is φ = 9755918608.

The previous prime is 12207321593. The next prime is 12207321611. The reversal of 12207321605 is 50612370221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12207321605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1236929 + ... + 1246758.

It is an arithmetic number, because the mean of its divisors is an integer number (1832961744).

Almost surely, 2^12207321605 is an apocalyptic number.

It is an amenable number.

12207321605 is a deficient number, since it is larger than the sum of its proper divisors (2456372347).

12207321605 is an equidigital number, since it uses as much as digits as its factorization.

12207321605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484675.

The product of its (nonzero) digits is 5040, while the sum is 29.

Adding to 12207321605 its reverse (50612370221), we get a palindrome (62819691826).

The spelling of 12207321605 in words is "twelve billion, two hundred seven million, three hundred twenty-one thousand, six hundred five".