222222001012111 has 2 divisors, whose sum is σ = 222222001012112. Its totient is φ = 222222001012110.

The previous prime is 222222001012049. The next prime is 222222001012139. The reversal of 222222001012111 is 111210100222222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222222001012111 - 2²¹ = 222221998914959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222222001912111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111111000506055 + 111111000506056.

It is an arithmetic number, because the mean of its divisors is an integer number (111111000506056).

Almost surely, 2^{222222001012111} is an apocalyptic number.

222222001012111 is a deficient number, since it is larger than the sum of its proper divisors (1).

222222001012111 is an equidigital number, since it uses as much as digits as its factorization.

222222001012111 is an odious number, because the sum of its binary digits is odd.

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

Adding to 222222001012111 its reverse (111210100222222), we get a palindrome (333432101234333).

The spelling of 222222001012111 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one million, twelve thousand, one hundred eleven".