12421591206 has 16 divisors (see below), whose sum is σ = 24846340464. Its totient is φ = 4140004064.

The previous prime is 12421591201. The next prime is 12421591241. The reversal of 12421591206 is 60219512421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421591201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78825 + ... + 176228.

It is an arithmetic number, because the mean of its divisors is an integer number (1552896279).

Almost surely, 2^12421591206 is an apocalyptic number.

12421591206 is an abundant number, since it is smaller than the sum of its proper divisors (12424749258).

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

12421591206 is a wasteful number, since it uses less digits than its factorization.

12421591206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263175.

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 12421591206 in words is "twelve billion, four hundred twenty-one million, five hundred ninety-one thousand, two hundred six".