2221020222111 has 24 divisors (see below), whose sum is σ = 3232960137680. Its totient is φ = 1469236320000.

The previous prime is 2221020222101. The next prime is 2221020222151. The reversal of 2221020222111 is 1112220201222.

It is a happy number.

2221020222111 is a `hidden beast` number, since 22 + 210 + 202 + 221 + 11 = 666.

2221020222111 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 2221020222111 - 2⁹ = 2221020221599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221020222101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1851111 + ... + 2805111.

Almost surely, 2^{2221020222111} is an apocalyptic number.

2221020222111 is a deficient number, since it is larger than the sum of its proper divisors (1011939915569).

2221020222111 is a wasteful number, since it uses less digits than its factorization.

2221020222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956007 (or 956004 counting only the distinct ones).

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

Adding to 2221020222111 its reverse (1112220201222), we get a palindrome (3333240423333).

The spelling of 2221020222111 in words is "two trillion, two hundred twenty-one billion, twenty million, two hundred twenty-two thousand, one hundred eleven".