2222221021111 has 16 divisors (see below), whose sum is σ = 2763237569344. Its totient is φ = 1740114607104.

The previous prime is 2222221021093. The next prime is 2222221021129. The reversal of 2222221021111 is 1111201222222.

It is an interprime number because it is at equal distance from previous prime (2222221021093) and next prime (2222221021129).

It is a cyclic number.

It is not a de Polignac number, because 2222221021111 - 2⁵ = 2222221021079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222221021171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125867520 + ... + 125885173.

It is an arithmetic number, because the mean of its divisors is an integer number (172702348084).

Almost surely, 2^{2222221021111} is an apocalyptic number.

2222221021111 is a deficient number, since it is larger than the sum of its proper divisors (541016548233).

2222221021111 is a wasteful number, since it uses less digits than its factorization.

2222221021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251752810.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2222221021111 its reverse (1111201222222), we get a palindrome (3333422243333).

The spelling of 2222221021111 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-one million, twenty-one thousand, one hundred eleven".