121211101101089 has 2 divisors, whose sum is σ = 121211101101090. Its totient is φ = 121211101101088.

The previous prime is 121211101101073. The next prime is 121211101101133. The reversal of 121211101101089 is 980101101112121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99599601601600 + 21611499499489 = 9979960^2 + 4648817^2 .

It is a cyclic number.

It is not a de Polignac number, because 121211101101089 - 2⁴ = 121211101101073 is a prime.

It is not a weakly prime, because it can be changed into another prime (121211101101019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605550550544 + 60605550550545.

It is an arithmetic number, because the mean of its divisors is an integer number (60605550550545).

Almost surely, 2^{121211101101089} is an apocalyptic number.

It is an amenable number.

121211101101089 is a deficient number, since it is larger than the sum of its proper divisors (1).

121211101101089 is an equidigital number, since it uses as much as digits as its factorization.

121211101101089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 29.

The spelling of 121211101101089 in words is "one hundred twenty-one trillion, two hundred eleven billion, one hundred one million, one hundred one thousand, eighty-nine".