1022120111 has 2 divisors, whose sum is σ = 1022120112. Its totient is φ = 1022120110.

The previous prime is 1022120093. The next prime is 1022120117. The reversal of 1022120111 is 1110212201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1022120111 - 2²⁶ = 955011247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022120092 and 1022120101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022120117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511060055 + 511060056.

It is an arithmetic number, because the mean of its divisors is an integer number (511060056).

Almost surely, 2^1022120111 is an apocalyptic number.

1022120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022120111 is an equidigital number, since it uses as much as digits as its factorization.

1022120111 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1022120111 is about 31970.6132409123. The cubic root of 1022120111 is about 1007.3196621563.

Adding to 1022120111 its reverse (1110212201), we get a palindrome (2132332312).

The spelling of 1022120111 in words is "one billion, twenty-two million, one hundred twenty thousand, one hundred eleven".