1223220001111 has 2 divisors, whose sum is σ = 1223220001112. Its totient is φ = 1223220001110.

The previous prime is 1223220001109. The next prime is 1223220001169. The reversal of 1223220001111 is 1111000223221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223220001111 - 2¹ = 1223220001109 is a prime.

It is a super-2 number, since 2×1223220001111² (a number of 25 digits) contains 22 as substring.

Together with 1223220001109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223220002111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611610000555 + 611610000556.

It is an arithmetic number, because the mean of its divisors is an integer number (611610000556).

Almost surely, 2^{1223220001111} is an apocalyptic number.

1223220001111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223220001111 is an equidigital number, since it uses as much as digits as its factorization.

1223220001111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1223220001111 its reverse (1111000223221), we get a palindrome (2334220224332).

The spelling of 1223220001111 in words is "one trillion, two hundred twenty-three billion, two hundred twenty million, one thousand, one hundred eleven".