12121112022077 has 2 divisors, whose sum is σ = 12121112022078. Its totient is φ = 12121112022076.

The previous prime is 12121112022053. The next prime is 12121112022133. The reversal of 12121112022077 is 77022021112121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6894268981636 + 5226843040441 = 2625694^2 + 2286229^2 .

It is an emirp because it is prime and its reverse (77022021112121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12121112022077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12121112022007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060556011038 + 6060556011039.

It is an arithmetic number, because the mean of its divisors is an integer number (6060556011039).

Almost surely, 2^{12121112022077} is an apocalyptic number.

It is an amenable number.

12121112022077 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121112022077 is an equidigital number, since it uses as much as digits as its factorization.

12121112022077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 29.

Adding to 12121112022077 its reverse (77022021112121), we get a palindrome (89143133134198).

The spelling of 12121112022077 in words is "twelve trillion, one hundred twenty-one billion, one hundred twelve million, twenty-two thousand, seventy-seven".