10011121210109 has 2 divisors, whose sum is σ = 10011121210110. Its totient is φ = 10011121210108.

The previous prime is 10011121209979. The next prime is 10011121210127. The reversal of 10011121210109 is 90101212111001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5905492934884 + 4105628275225 = 2430122^2 + 2026235^2 .

It is a cyclic number.

It is not a de Polignac number, because 10011121210109 - 2³² = 10006826242813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10011121210159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005560605054 + 5005560605055.

It is an arithmetic number, because the mean of its divisors is an integer number (5005560605055).

Almost surely, 2^{10011121210109} is an apocalyptic number.

It is an amenable number.

10011121210109 is a deficient number, since it is larger than the sum of its proper divisors (1).

10011121210109 is an equidigital number, since it uses as much as digits as its factorization.

10011121210109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 10011121210109 in words is "ten trillion, eleven billion, one hundred twenty-one million, two hundred ten thousand, one hundred nine".