2221122201 has 8 divisors (see below), whose sum is σ = 3011691360. Its totient is φ = 1455650592.

The previous prime is 2221122187. The next prime is 2221122229. The reversal of 2221122201 is 1022211222.

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

It is not a de Polignac number, because 2221122201 - 2⁷ = 2221122073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221129201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6274180 + ... + 6274533.

It is an arithmetic number, because the mean of its divisors is an integer number (376461420).

Almost surely, 2^2221122201 is an apocalyptic number.

It is an amenable number.

2221122201 is a deficient number, since it is larger than the sum of its proper divisors (790569159).

2221122201 is a wasteful number, since it uses less digits than its factorization.

2221122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12548775.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2221122201 is about 47128.7831478811. The cubic root of 2221122201 is about 1304.7405229767.

Adding to 2221122201 its reverse (1022211222), we get a palindrome (3243333423).

The spelling of 2221122201 in words is "two billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred one".