1121022011 has 2 divisors, whose sum is σ = 1121022012. Its totient is φ = 1121022010.

The previous prime is 1121021977. The next prime is 1121022043. The reversal of 1121022011 is 1102201211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121022011 - 2⁶ = 1121021947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121021983 and 1121022001.

It is not a weakly prime, because it can be changed into another prime (1121022061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560511005 + 560511006.

It is an arithmetic number, because the mean of its divisors is an integer number (560511006).

Almost surely, 2^1121022011 is an apocalyptic number.

1121022011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121022011 is an equidigital number, since it uses as much as digits as its factorization.

1121022011 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.

The square root of 1121022011 is about 33481.6667894536. Note that the first 3 decimals coincide. The cubic root of 1121022011 is about 1038.8146044620.

Adding to 1121022011 its reverse (1102201211), we get a palindrome (2223223222).

The spelling of 1121022011 in words is "one billion, one hundred twenty-one million, twenty-two thousand, eleven".