12221201000221 has 8 divisors (see below), whose sum is σ = 12788080018560. Its totient is φ = 11657282186352.

The previous prime is 12221201000209. The next prime is 12221201000311. The reversal of 12221201000221 is 12200010212221.

It is a happy number.

12221201000221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12221201000221 - 2³⁵ = 12186841261853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12221201000195 and 12221201000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221201000821) 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, 740042670 + ... + 740059183.

It is an arithmetic number, because the mean of its divisors is an integer number (1598510002320).

Almost surely, 2^{12221201000221} is an apocalyptic number.

It is an amenable number.

12221201000221 is a deficient number, since it is larger than the sum of its proper divisors (566879018339).

12221201000221 is a wasteful number, since it uses less digits than its factorization.

12221201000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480102235.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12221201000221 its reverse (12200010212221), we get a palindrome (24421211212442).

The spelling of 12221201000221 in words is "twelve trillion, two hundred twenty-one billion, two hundred one million, two hundred twenty-one", and thus it is an aban number.