1012110121 has 16 divisors (see below), whose sum is σ = 1145592000. Its totient is φ = 885729600.

The previous prime is 1012110119. The next prime is 1012110137. The reversal of 1012110121 is 1210112101.

1012110121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1012110121 - 2¹ = 1012110119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012110098 and 1012110107.

It is not an unprimeable number, because it can be changed into a prime (1012110161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106786 + ... + 115876.

It is an arithmetic number, because the mean of its divisors is an integer number (71599500).

Almost surely, 2^1012110121 is an apocalyptic number.

1012110121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1012110121 is a deficient number, since it is larger than the sum of its proper divisors (133481879).

1012110121 is a wasteful number, since it uses less digits than its factorization.

1012110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9480.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1012110121 is about 31813.6782060798. The cubic root of 1012110121 is about 1004.0205207495.

Adding to 1012110121 its reverse (1210112101), we get a palindrome (2222222222).

The spelling of 1012110121 in words is "one billion, twelve million, one hundred ten thousand, one hundred twenty-one".