121000121112077 has 2 divisors, whose sum is σ = 121000121112078. Its totient is φ = 121000121112076.

The previous prime is 121000121111761. The next prime is 121000121112151. The reversal of 121000121112077 is 770211121000121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108260154374596 + 12739966737481 = 10404814^2 + 3569309^2 .

It is a cyclic number.

It is not a de Polignac number, because 121000121112077 - 2¹⁰ = 121000121111053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121000121112877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500060556038 + 60500060556039.

It is an arithmetic number, because the mean of its divisors is an integer number (60500060556039).

Almost surely, 2^{121000121112077} is an apocalyptic number.

It is an amenable number.

121000121112077 is a deficient number, since it is larger than the sum of its proper divisors (1).

121000121112077 is an equidigital number, since it uses as much as digits as its factorization.

121000121112077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 26.

Adding to 121000121112077 its reverse (770211121000121), we get a palindrome (891211242112198).

The spelling of 121000121112077 in words is "one hundred twenty-one trillion, one hundred twenty-one million, one hundred twelve thousand, seventy-seven".