2221221002201 has 8 divisors (see below), whose sum is σ = 2358289463040. Its totient is φ = 2084864586048.

The previous prime is 2221221002179. The next prime is 2221221002207. The reversal of 2221221002201 is 1022001221222.

It is a happy number.

2221221002201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2221221002201 - 2²⁶ = 2221153893337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 2221221002201.

It is not an unprimeable number, because it can be changed into a prime (2221221002207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178004741 + ... + 178017218.

It is an arithmetic number, because the mean of its divisors is an integer number (294786182880).

Almost surely, 2^{2221221002201} is an apocalyptic number.

It is an amenable number.

2221221002201 is a deficient number, since it is larger than the sum of its proper divisors (137068460839).

2221221002201 is a wasteful number, since it uses less digits than its factorization.

2221221002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356022343.

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

Adding to 2221221002201 its reverse (1022001221222), we get a palindrome (3243222223423).

The spelling of 2221221002201 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-one million, two thousand, two hundred one".