121211020230133 has 2 divisors, whose sum is σ = 121211020230134. Its totient is φ = 121211020230132.

The previous prime is 121211020230043. The next prime is 121211020230137. The reversal of 121211020230133 is 331032020112121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92569760057124 + 28641260173009 = 9621318^2 + 5351753^2 .

It is an emirp because it is prime and its reverse (331032020112121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121211020230133 - 2⁴¹ = 119011996974581 is a prime.

It is a super-2 number, since 2×121211020230133² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121211020230137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605510115066 + 60605510115067.

It is an arithmetic number, because the mean of its divisors is an integer number (60605510115067).

Almost surely, 2^{121211020230133} is an apocalyptic number.

It is an amenable number.

121211020230133 is a deficient number, since it is larger than the sum of its proper divisors (1).

121211020230133 is an equidigital number, since it uses as much as digits as its factorization.

121211020230133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121211020230133 its reverse (331032020112121), we get a palindrome (452243040342254).

The spelling of 121211020230133 in words is "one hundred twenty-one trillion, two hundred eleven billion, twenty million, two hundred thirty thousand, one hundred thirty-three".