121112011211273 has 2 divisors, whose sum is σ = 121112011211274. Its totient is φ = 121112011211272.

The previous prime is 121112011211179. The next prime is 121112011211293. The reversal of 121112011211273 is 372112110211121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94146714743929 + 26965296467344 = 9702923^2 + 5192812^2 .

It is a cyclic number.

It is not a de Polignac number, because 121112011211273 - 2¹⁶ = 121112011145737 is a prime.

It is not a weakly prime, because it can be changed into another prime (121112011211293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60556005605636 + 60556005605637.

It is an arithmetic number, because the mean of its divisors is an integer number (60556005605637).

Almost surely, 2^{121112011211273} is an apocalyptic number.

It is an amenable number.

121112011211273 is a deficient number, since it is larger than the sum of its proper divisors (1).

121112011211273 is an equidigital number, since it uses as much as digits as its factorization.

121112011211273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 26.

Adding to 121112011211273 its reverse (372112110211121), we get a palindrome (493224121422394).

The spelling of 121112011211273 in words is "one hundred twenty-one trillion, one hundred twelve billion, eleven million, two hundred eleven thousand, two hundred seventy-three".