121211033 has 2 divisors, whose sum is σ = 121211034. Its totient is φ = 121211032.

The previous prime is 121211021. The next prime is 121211059. The reversal of 121211033 is 330112121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121176064 + 34969 = 11008^2 + 187^2 .

It is a cyclic number.

It is not a de Polignac number, because 121211033 - 2⁴ = 121211017 is a prime.

It is a super-2 number, since 2×121211033² = 29384229041854178, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121210999 and 121211017.

It is not a weakly prime, because it can be changed into another prime (121211063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605516 + 60605517.

It is an arithmetic number, because the mean of its divisors is an integer number (60605517).

Almost surely, 2^121211033 is an apocalyptic number.

It is an amenable number.

121211033 is a deficient number, since it is larger than the sum of its proper divisors (1).

121211033 is an equidigital number, since it uses as much as digits as its factorization.

121211033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 121211033 is about 11009.5882302655. The cubic root of 121211033 is about 494.8961221332.

Adding to 121211033 its reverse (330112121), we get a palindrome (451323154).

The spelling of 121211033 in words is "one hundred twenty-one million, two hundred eleven thousand, thirty-three".