1010101121109 has 6 divisors (see below), whose sum is σ = 1459034952726. Its totient is φ = 673400747400.

The previous prime is 1010101121083. The next prime is 1010101121129. The reversal of 1010101121109 is 9011211010101.

It can be written as a sum of positive squares in only one way, i.e., 666027371025 + 344073750084 = 816105^2 + 586578^2 .

It is not a de Polignac number, because 1010101121109 - 2⁹ = 1010101120597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1010101121091 and 1010101121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010101121129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56116728942 + ... + 56116728959.

It is an arithmetic number, because the mean of its divisors is an integer number (243172492121).

Almost surely, 2^{1010101121109} is an apocalyptic number.

It is an amenable number.

1010101121109 is a deficient number, since it is larger than the sum of its proper divisors (448933831617).

1010101121109 is a wasteful number, since it uses less digits than its factorization.

1010101121109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112233457907 (or 112233457904 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 18.

The spelling of 1010101121109 in words is "one trillion, ten billion, one hundred one million, one hundred twenty-one thousand, one hundred nine".