12220001111 has 2 divisors, whose sum is σ = 12220001112. Its totient is φ = 12220001110.

The previous prime is 12220001093. The next prime is 12220001141. The reversal of 12220001111 is 11110002221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12220001111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12220001092 and 12220001101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12220001141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110000555 + 6110000556.

It is an arithmetic number, because the mean of its divisors is an integer number (6110000556).

Almost surely, 2^12220001111 is an apocalyptic number.

12220001111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220001111 is an equidigital number, since it uses as much as digits as its factorization.

12220001111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12220001111 its reverse (11110002221), we get a palindrome (23330003332).

The spelling of 12220001111 in words is "twelve billion, two hundred twenty million, one thousand, one hundred eleven".