121122011 has 2 divisors, whose sum is σ = 121122012. Its totient is φ = 121122010.

The previous prime is 121122007. The next prime is 121122037. The reversal of 121122011 is 110221121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121122011 - 2² = 121122007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121121983 and 121122001.

It is not a weakly prime, because it can be changed into another prime (121122041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60561005 + 60561006.

It is an arithmetic number, because the mean of its divisors is an integer number (60561006).

Almost surely, 2^121122011 is an apocalyptic number.

121122011 is a deficient number, since it is larger than the sum of its proper divisors (1).

121122011 is an equidigital number, since it uses as much as digits as its factorization.

121122011 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 121122011 is about 11005.5445571766. The cubic root of 121122011 is about 494.7749356055.

Adding to 121122011 its reverse (110221121), we get a palindrome (231343132).

The spelling of 121122011 in words is "one hundred twenty-one million, one hundred twenty-two thousand, eleven".