100121020211189 has 2 divisors, whose sum is σ = 100121020211190. Its totient is φ = 100121020211188.

The previous prime is 100121020211161. The next prime is 100121020211327. The reversal of 100121020211189 is 981112020121001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73519615112164 + 26601405099025 = 8574358^2 + 5157655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100121020211189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100121020211129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060510105594 + 50060510105595.

It is an arithmetic number, because the mean of its divisors is an integer number (50060510105595).

Almost surely, 2^{100121020211189} is an apocalyptic number.

It is an amenable number.

100121020211189 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121020211189 is an equidigital number, since it uses as much as digits as its factorization.

100121020211189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 29.

The spelling of 100121020211189 in words is "one hundred trillion, one hundred twenty-one billion, twenty million, two hundred eleven thousand, one hundred eighty-nine".