12220220012201 has 4 divisors (see below), whose sum is σ = 12220242424404. Its totient is φ = 12220197600000.

The previous prime is 12220220012141. The next prime is 12220220012237. The reversal of 12220220012201 is 10221002202221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2484422202025 + 9735797810176 = 1576205^2 + 3120224^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220220012201 - 2¹⁴ = 12220219995817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12220220012201.

It is not an unprimeable number, because it can be changed into a prime (12220220012401) 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, 10367300 + ... + 11485701.

It is an arithmetic number, because the mean of its divisors is an integer number (3055060606101).

Almost surely, 2^{12220220012201} is an apocalyptic number.

It is an amenable number.

12220220012201 is a deficient number, since it is larger than the sum of its proper divisors (22412203).

12220220012201 is an equidigital number, since it uses as much as digits as its factorization.

12220220012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22412202.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12220220012201 its reverse (10221002202221), we get a palindrome (22441222214422).

The spelling of 12220220012201 in words is "twelve trillion, two hundred twenty billion, two hundred twenty million, twelve thousand, two hundred one".