1220012002201 has 4 divisors (see below), whose sum is σ = 1220026336804. Its totient is φ = 1219997667600.

The previous prime is 1220012002199. The next prime is 1220012002229. The reversal of 1220012002201 is 1022002100221.

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 574920315225 + 645091686976 = 758235^2 + 803176^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220012002201 - 2¹ = 1220012002199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220012002271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7038870 + ... + 7210111.

It is an arithmetic number, because the mean of its divisors is an integer number (305006584201).

Almost surely, 2^{1220012002201} is an apocalyptic number.

It is an amenable number.

1220012002201 is a deficient number, since it is larger than the sum of its proper divisors (14334603).

1220012002201 is an equidigital number, since it uses as much as digits as its factorization.

1220012002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14334602.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1220012002201 its reverse (1022002100221), we get a palindrome (2242014102422).

The spelling of 1220012002201 in words is "one trillion, two hundred twenty billion, twelve million, two thousand, two hundred one".