1011101000121 has 12 divisors (see below), whose sum is σ = 1494443856048. Its totient is φ = 658391348664.

The previous prime is 1011101000111. The next prime is 1011101000153. The reversal of 1011101000121 is 1210001011101.

It is not a de Polignac number, because 1011101000121 - 2⁹ = 1011100999609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1011101000111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1306331655 + ... + 1306332428.

It is an arithmetic number, because the mean of its divisors is an integer number (124536988004).

Almost surely, 2^{1011101000121} is an apocalyptic number.

It is an amenable number.

1011101000121 is a deficient number, since it is larger than the sum of its proper divisors (483342855927).

1011101000121 is a wasteful number, since it uses less digits than its factorization.

1011101000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612664132 (or 2612664129 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1011101000121 its reverse (1210001011101), we get a palindrome (2221102011222).

The spelling of 1011101000121 in words is "one trillion, eleven billion, one hundred one million, one hundred twenty-one", and thus it is an aban number.