12010001020221 has 8 divisors (see below), whose sum is σ = 16015463307360. Its totient is φ = 8005603039952.

The previous prime is 12010001020217. The next prime is 12010001020289. The reversal of 12010001020221 is 12202010001021.

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 12010001020221 - 2² = 12010001020217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12010001020197 and 12010001020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010001020021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266050386 + ... + 266095523.

It is an arithmetic number, because the mean of its divisors is an integer number (2001932913420).

Almost surely, 2^{12010001020221} is an apocalyptic number.

It is an amenable number.

12010001020221 is a deficient number, since it is larger than the sum of its proper divisors (4005462287139).

12010001020221 is an equidigital number, since it uses as much as digits as its factorization.

12010001020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532153435.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12010001020221 its reverse (12202010001021), we get a palindrome (24212011021242).

The spelling of 12010001020221 in words is "twelve trillion, ten billion, one million, twenty thousand, two hundred twenty-one".