12213210001 has 4 divisors (see below), whose sum is σ = 12252992752. Its totient is φ = 12173427252.

The previous prime is 12213209999. The next prime is 12213210067. The reversal of 12213210001 is 10001231221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10001231221 = 9341 ⋅1070681.

It is a cyclic number.

It is not a de Polignac number, because 12213210001 - 2¹ = 12213209999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12213210101) 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, 19890915 + ... + 19891528.

It is an arithmetic number, because the mean of its divisors is an integer number (3063248188).

Almost surely, 2^12213210001 is an apocalyptic number.

It is an amenable number.

12213210001 is a deficient number, since it is larger than the sum of its proper divisors (39782751).

12213210001 is an equidigital number, since it uses as much as digits as its factorization.

12213210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39782750.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12213210001 its reverse (10001231221), we get a palindrome (22214441222).

The spelling of 12213210001 in words is "twelve billion, two hundred thirteen million, two hundred ten thousand, one".