1201211120089 has 2 divisors, whose sum is σ = 1201211120090. Its totient is φ = 1201211120088.

The previous prime is 1201211120069. The next prime is 1201211120113. The reversal of 1201211120089 is 9800211121021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1198768783689 + 2442336400 = 1094883^2 + 49420^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201211120089 - 2¹³ = 1201211111897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201211120069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600605560044 + 600605560045.

It is an arithmetic number, because the mean of its divisors is an integer number (600605560045).

Almost surely, 2^{1201211120089} is an apocalyptic number.

It is an amenable number.

1201211120089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201211120089 is an equidigital number, since it uses as much as digits as its factorization.

1201211120089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 28.

The spelling of 1201211120089 in words is "one trillion, two hundred one billion, two hundred eleven million, one hundred twenty thousand, eighty-nine".