12021079505 has 8 divisors (see below), whose sum is σ = 15184521600. Its totient is φ = 9110712816.

The previous prime is 12021079481. The next prime is 12021079519. The reversal of 12021079505 is 50597012021.

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 not a de Polignac number, because 12021079505 - 2¹⁴ = 12021063121 is a prime.

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, 63268745 + ... + 63268934.

It is an arithmetic number, because the mean of its divisors is an integer number (1898065200).

Almost surely, 2^12021079505 is an apocalyptic number.

It is an amenable number.

12021079505 is a deficient number, since it is larger than the sum of its proper divisors (3163442095).

12021079505 is a wasteful number, since it uses less digits than its factorization.

12021079505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126537703.

The product of its (nonzero) digits is 6300, while the sum is 32.

The spelling of 12021079505 in words is "twelve billion, twenty-one million, seventy-nine thousand, five hundred five".