12000712010621 has 4 divisors (see below), whose sum is σ = 12004845913632. Its totient is φ = 11996578107612.

The previous prime is 12000712010611. The next prime is 12000712010627. The reversal of 12000712010621 is 12601021700021.

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.

It is a cyclic number.

It is not a de Polignac number, because 12000712010621 - 2⁶ = 12000712010557 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 (12000712010627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2066947151 + ... + 2066952956.

It is an arithmetic number, because the mean of its divisors is an integer number (3001211478408).

Almost surely, 2^{12000712010621} is an apocalyptic number.

It is an amenable number.

12000712010621 is a deficient number, since it is larger than the sum of its proper divisors (4133903011).

12000712010621 is an equidigital number, since it uses as much as digits as its factorization.

12000712010621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4133903010.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 12000712010621 its reverse (12601021700021), we get a palindrome (24601733710642).

The spelling of 12000712010621 in words is "twelve trillion, seven hundred twelve million, ten thousand, six hundred twenty-one".