2221201222011 has 6 divisors (see below), whose sum is σ = 3208401765140. Its totient is φ = 1480800814668.

The previous prime is 2221201221997. The next prime is 2221201222151. The reversal of 2221201222011 is 1102221021222.

It is a happy number.

2221201222011 is a `hidden beast` number, since 222 + 120 + 122 + 201 + 1 = 666.

2221201222011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2221201222011 - 2¹⁷ = 2221201090939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221201222711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123400067881 + ... + 123400067898.

Almost surely, 2^{2221201222011} is an apocalyptic number.

2221201222011 is a deficient number, since it is larger than the sum of its proper divisors (987200543129).

2221201222011 is a wasteful number, since it uses less digits than its factorization.

2221201222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246800135785 (or 246800135782 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2221201222011 its reverse (1102221021222), we get a palindrome (3323422243233).

The spelling of 2221201222011 in words is "two trillion, two hundred twenty-one billion, two hundred one million, two hundred twenty-two thousand, eleven".