222201001111 has 2 divisors, whose sum is σ = 222201001112. Its totient is φ = 222201001110.

The previous prime is 222201001097. The next prime is 222201001129. The reversal of 222201001111 is 111100102222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222201001111 - 2¹¹ = 222200999063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222201001091 and 222201001100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222201004111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111100500555 + 111100500556.

It is an arithmetic number, because the mean of its divisors is an integer number (111100500556).

Almost surely, 2^222201001111 is an apocalyptic number.

222201001111 is a deficient number, since it is larger than the sum of its proper divisors (1).

222201001111 is an equidigital number, since it uses as much as digits as its factorization.

222201001111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 222201001111 its reverse (111100102222), we get a palindrome (333301103333).

The spelling of 222201001111 in words is "two hundred twenty-two billion, two hundred one million, one thousand, one hundred eleven".