200121111089 has 2 divisors, whose sum is σ = 200121111090. Its totient is φ = 200121111088.

The previous prime is 200121111067. The next prime is 200121111097. The reversal of 200121111089 is 980111121002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129582000625 + 70539110464 = 359975^2 + 265592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200121111089 is a prime.

It is not a weakly prime, because it can be changed into another prime (200121111019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060555544 + 100060555545.

It is an arithmetic number, because the mean of its divisors is an integer number (100060555545).

Almost surely, 2^200121111089 is an apocalyptic number.

It is an amenable number.

200121111089 is a deficient number, since it is larger than the sum of its proper divisors (1).

200121111089 is an equidigital number, since it uses as much as digits as its factorization.

200121111089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 200121111089 in words is "two hundred billion, one hundred twenty-one million, one hundred eleven thousand, eighty-nine".