12010001000221 has 24 divisors (see below), whose sum is σ = 14260442208480. Its totient is φ = 10081589105952.

The previous prime is 12010001000209. The next prime is 12010001000251. The reversal of 12010001000221 is 12200010001021.

It is not a de Polignac number, because 12010001000221 - 2⁵ = 12010001000189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12010001000198 and 12010001000207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010001000251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2806651 + ... + 5647768.

It is an arithmetic number, because the mean of its divisors is an integer number (594185092020).

Almost surely, 2^{12010001000221} is an apocalyptic number.

It is an amenable number.

12010001000221 is a deficient number, since it is larger than the sum of its proper divisors (2250441208259).

12010001000221 is an equidigital number, since it uses as much as digits as its factorization.

12010001000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8455033 (or 8455026 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12010001000221 its reverse (12200010001021), we get a palindrome (24210011001242).

The spelling of 12010001000221 in words is "twelve trillion, ten billion, one million, two hundred twenty-one", and thus it is an aban number.