121000221101113 has 2 divisors, whose sum is σ = 121000221101114. Its totient is φ = 121000221101112.

The previous prime is 121000221101101. The next prime is 121000221101129. The reversal of 121000221101113 is 311101122000121.

It is a happy number.

It is an a-pointer prime, because the next prime (121000221101129) can be obtained adding 121000221101113 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115433278144144 + 5566942956969 = 10743988^2 + 2359437^2 .

It is an emirp because it is prime and its reverse (311101122000121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121000221101113 - 2¹³ = 121000221092921 is a prime.

It is not a weakly prime, because it can be changed into another prime (121000221101713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500110550556 + 60500110550557.

It is an arithmetic number, because the mean of its divisors is an integer number (60500110550557).

Almost surely, 2^{121000221101113} is an apocalyptic number.

It is an amenable number.

121000221101113 is a deficient number, since it is larger than the sum of its proper divisors (1).

121000221101113 is an equidigital number, since it uses as much as digits as its factorization.

121000221101113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 121000221101113 its reverse (311101122000121), we get a palindrome (432101343101234).

The spelling of 121000221101113 in words is "one hundred twenty-one trillion, two hundred twenty-one million, one hundred one thousand, one hundred thirteen".