12221203001 has 16 divisors (see below), whose sum is σ = 14029801344. Its totient is φ = 10428372864.

The previous prime is 12221202991. The next prime is 12221203037. The reversal of 12221203001 is 10030212221.

It is a happy number.

It is not a de Polignac number, because 12221203001 - 2⁶ = 12221202937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221203901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1931495 + ... + 1937811.

It is an arithmetic number, because the mean of its divisors is an integer number (876862584).

Almost surely, 2^12221203001 is an apocalyptic number.

It is an amenable number.

12221203001 is a deficient number, since it is larger than the sum of its proper divisors (1808598343).

12221203001 is an equidigital number, since it uses as much as digits as its factorization.

12221203001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7520.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12221203001 its reverse (10030212221), we get a palindrome (22251415222).

The spelling of 12221203001 in words is "twelve billion, two hundred twenty-one million, two hundred three thousand, one".