222210112021111 has 2 divisors, whose sum is σ = 222210112021112. Its totient is φ = 222210112021110.

The previous prime is 222210112021099. The next prime is 222210112021133. The reversal of 222210112021111 is 111120211012222.

It is a happy number.

222210112021111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222210112021111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222210412021111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111105056010555 + 111105056010556.

It is an arithmetic number, because the mean of its divisors is an integer number (111105056010556).

Almost surely, 2^{222210112021111} is an apocalyptic number.

222210112021111 is a deficient number, since it is larger than the sum of its proper divisors (1).

222210112021111 is an equidigital number, since it uses as much as digits as its factorization.

222210112021111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 222210112021111 its reverse (111120211012222), we get a palindrome (333330323033333).

The spelling of 222210112021111 in words is "two hundred twenty-two trillion, two hundred ten billion, one hundred twelve million, twenty-one thousand, one hundred eleven".