1220030111 has 2 divisors, whose sum is σ = 1220030112. Its totient is φ = 1220030110.

The previous prime is 1220030083. The next prime is 1220030131. The reversal of 1220030111 is 1110300221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220030111 - 2⁶ = 1220030047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220030092 and 1220030101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220030131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610015055 + 610015056.

It is an arithmetic number, because the mean of its divisors is an integer number (610015056).

Almost surely, 2^1220030111 is an apocalyptic number.

1220030111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220030111 is an equidigital number, since it uses as much as digits as its factorization.

1220030111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1220030111 is about 34928.9294281975. The cubic root of 1220030111 is about 1068.5385209232.

Adding to 1220030111 its reverse (1110300221), we get a palindrome (2330330332).

The spelling of 1220030111 in words is "one billion, two hundred twenty million, thirty thousand, one hundred eleven".