2221203003001 has 4 divisors (see below), whose sum is σ = 2221509933412. Its totient is φ = 2220896072592.

The previous prime is 2221203002999. The next prime is 2221203003017. The reversal of 2221203003001 is 1003003021222.

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 1998197107776 + 223005895225 = 1413576^2 + 472235^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221203003001 - 2¹ = 2221203002999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221203003101) 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, 153454350 + ... + 153468823.

It is an arithmetic number, because the mean of its divisors is an integer number (555377483353).

Almost surely, 2^{2221203003001} is an apocalyptic number.

It is an amenable number.

2221203003001 is a deficient number, since it is larger than the sum of its proper divisors (306930411).

2221203003001 is an equidigital number, since it uses as much as digits as its factorization.

2221203003001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306930410.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 2221203003001 its reverse (1003003021222), we get a palindrome (3224206024223).

The spelling of 2221203003001 in words is "two trillion, two hundred twenty-one billion, two hundred three million, three thousand, one".