12021221110202 has 8 divisors (see below), whose sum is σ = 18051241605300. Its totient is φ = 6004140575104.

The previous prime is 12021221110189. The next prime is 12021221110207. The reversal of 12021221110202 is 20201112212021.

It can be written as a sum of positive squares in 2 ways, for example, as 10194233651281 + 1826987458921 = 3192841^2 + 1351661^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12021221110207) 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, 3234987677 + ... + 3234991392.

Almost surely, 2^{12021221110202} is an apocalyptic number.

12021221110202 is a deficient number, since it is larger than the sum of its proper divisors (6030020495098).

12021221110202 is an equidigital number, since it uses as much as digits as its factorization.

12021221110202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6469980000.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12021221110202 its reverse (20201112212021), we get a palindrome (32222333322223).

The spelling of 12021221110202 in words is "twelve trillion, twenty-one billion, two hundred twenty-one million, one hundred ten thousand, two hundred two".