12421522707 has 32 divisors (see below), whose sum is σ = 19033297920. Its totient is φ = 7126463520.

The previous prime is 12421522637. The next prime is 12421522717. The reversal of 12421522707 is 70722512421.

It is not a de Polignac number, because 12421522707 - 2¹¹ = 12421520659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12421522717) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 887788 + ... + 901670.

It is an arithmetic number, because the mean of its divisors is an integer number (594790560).

Almost surely, 2^12421522707 is an apocalyptic number.

12421522707 is a deficient number, since it is larger than the sum of its proper divisors (6611775213).

12421522707 is a wasteful number, since it uses less digits than its factorization.

12421522707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15343.

The product of its (nonzero) digits is 15680, while the sum is 33.

The spelling of 12421522707 in words is "twelve billion, four hundred twenty-one million, five hundred twenty-two thousand, seven hundred seven".