1121202120089 has 2 divisors, whose sum is σ = 1121202120090. Its totient is φ = 1121202120088.

The previous prime is 1121202120047. The next prime is 1121202120091. The reversal of 1121202120089 is 9800212021211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 873695870089 + 247506250000 = 934717^2 + 497500^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121202120089 - 2⁸ = 1121202119833 is a prime.

Together with 1121202120091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1121202120889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560601060044 + 560601060045.

It is an arithmetic number, because the mean of its divisors is an integer number (560601060045).

Almost surely, 2^{1121202120089} is an apocalyptic number.

It is an amenable number.

1121202120089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121202120089 is an equidigital number, since it uses as much as digits as its factorization.

1121202120089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 1121202120089 in words is "one trillion, one hundred twenty-one billion, two hundred two million, one hundred twenty thousand, eighty-nine".