12050666621 has 16 divisors (see below), whose sum is σ = 14394316800. Its totient is φ = 9864006768.

The previous prime is 12050666603. The next prime is 12050666701. The reversal of 12050666621 is 12666605021.

It is a de Polignac number, because none of the positive numbers 2^k-12050666621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12050666821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39200 + ... + 160118.

It is an arithmetic number, because the mean of its divisors is an integer number (899644800).

Almost surely, 2^12050666621 is an apocalyptic number.

It is an amenable number.

12050666621 is a deficient number, since it is larger than the sum of its proper divisors (2343650179).

12050666621 is a wasteful number, since it uses less digits than its factorization.

12050666621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121568.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 12050666621 in words is "twelve billion, fifty million, six hundred sixty-six thousand, six hundred twenty-one".