121003011211 has 2 divisors, whose sum is σ = 121003011212. Its totient is φ = 121003011210.

The previous prime is 121003011187. The next prime is 121003011223. The reversal of 121003011211 is 112110300121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121003011211 - 2⁷ = 121003011083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121003011191 and 121003011200.

It is not a weakly prime, because it can be changed into another prime (121003011911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501505605 + 60501505606.

It is an arithmetic number, because the mean of its divisors is an integer number (60501505606).

Almost surely, 2^121003011211 is an apocalyptic number.

121003011211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121003011211 is an equidigital number, since it uses as much as digits as its factorization.

121003011211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 121003011211 its reverse (112110300121), we get a palindrome (233113311332).

The spelling of 121003011211 in words is "one hundred twenty-one billion, three million, eleven thousand, two hundred eleven".