1102110121 has 4 divisors (see below), whose sum is σ = 1259554432. Its totient is φ = 944665812.

The previous prime is 1102110103. The next prime is 1102110133. The reversal of 1102110121 is 1210112011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1210112011 = 1811 ⋅668201.

It is a cyclic number.

It is not a de Polignac number, because 1102110121 - 2⁵ = 1102110089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102110098 and 1102110107.

It is not an unprimeable number, because it can be changed into a prime (1102110101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78722145 + ... + 78722158.

It is an arithmetic number, because the mean of its divisors is an integer number (314888608).

Almost surely, 2^1102110121 is an apocalyptic number.

It is an amenable number.

1102110121 is a deficient number, since it is larger than the sum of its proper divisors (157444311).

1102110121 is an equidigital number, since it uses as much as digits as its factorization.

1102110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157444310.

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

The square root of 1102110121 is about 33198.0439333404. The cubic root of 1102110121 is about 1032.9397653355.

Adding to 1102110121 its reverse (1210112011), we get a palindrome (2312222132).

The spelling of 1102110121 in words is "one billion, one hundred two million, one hundred ten thousand, one hundred twenty-one".