1122122011 has 2 divisors, whose sum is σ = 1122122012. Its totient is φ = 1122122010.

The previous prime is 1122121997. The next prime is 1122122041. The reversal of 1122122011 is 1102212211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1122122011 - 2¹¹ = 1122119963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122121982 and 1122122000.

It is not a weakly prime, because it can be changed into another prime (1122122041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561061005 + 561061006.

It is an arithmetic number, because the mean of its divisors is an integer number (561061006).

Almost surely, 2^1122122011 is an apocalyptic number.

1122122011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122122011 is an equidigital number, since it uses as much as digits as its factorization.

1122122011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1122122011 is about 33498.0896619494. The cubic root of 1122122011 is about 1039.1542714509.

Adding to 1122122011 its reverse (1102212211), we get a palindrome (2224334222).

The spelling of 1122122011 in words is "one billion, one hundred twenty-two million, one hundred twenty-two thousand, eleven".