12074485621 has 4 divisors (see below), whose sum is σ = 13172166144. Its totient is φ = 10976805100.

The previous prime is 12074485583. The next prime is 12074485669. The reversal of 12074485621 is 12658447021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12658447021 = 11 ⋅1150767911.

It is a cyclic number.

It is not a de Polignac number, because 12074485621 - 2⁹ = 12074485109 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12074485721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548840245 + ... + 548840266.

It is an arithmetic number, because the mean of its divisors is an integer number (3293041536).

Almost surely, 2^12074485621 is an apocalyptic number.

12074485621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12074485621 is a deficient number, since it is larger than the sum of its proper divisors (1097680523).

12074485621 is a wasteful number, since it uses less digits than its factorization.

12074485621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097680522.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 12074485621 in words is "twelve billion, seventy-four million, four hundred eighty-five thousand, six hundred twenty-one".