12069718421 has 8 divisors (see below), whose sum is σ = 12159680064. Its totient is φ = 11979967680.

The previous prime is 12069718391. The next prime is 12069718433. The reversal of 12069718421 is 12481796021.

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-12069718421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12069718321) 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, 63101 + ... + 167693.

It is an arithmetic number, because the mean of its divisors is an integer number (1519960008).

Almost surely, 2^12069718421 is an apocalyptic number.

It is an amenable number.

12069718421 is a deficient number, since it is larger than the sum of its proper divisors (89961643).

12069718421 is a wasteful number, since it uses less digits than its factorization.

12069718421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105451.

The product of its (nonzero) digits is 48384, while the sum is 41.

The spelling of 12069718421 in words is "twelve billion, sixty-nine million, seven hundred eighteen thousand, four hundred twenty-one".