12070648021 has 4 divisors (see below), whose sum is σ = 12070900044. Its totient is φ = 12070396000.

The previous prime is 12070648019. The next prime is 12070648049. The reversal of 12070648021 is 12084607021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12084607021 = 12253 ⋅986257.

It can be written as a sum of positive squares in 2 ways, for example, as 3051347121 + 9019300900 = 55239^2 + 94970^2 .

It is a cyclic number.

It is not a de Polignac number, because 12070648021 - 2¹ = 12070648019 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 (12070648061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29560 + ... + 158161.

It is an arithmetic number, because the mean of its divisors is an integer number (3017725011).

Almost surely, 2^12070648021 is an apocalyptic number.

It is an amenable number.

12070648021 is a deficient number, since it is larger than the sum of its proper divisors (252023).

12070648021 is an equidigital number, since it uses as much as digits as its factorization.

12070648021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252022.

The product of its (nonzero) digits is 5376, while the sum is 31.

The spelling of 12070648021 in words is "twelve billion, seventy million, six hundred forty-eight thousand, twenty-one".