1102044121 has 4 divisors (see below), whose sum is σ = 1102401700. Its totient is φ = 1101686544.

The previous prime is 1102044113. The next prime is 1102044131. The reversal of 1102044121 is 1214402011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 311028496 + 791015625 = 17636^2 + 28125^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102044121 - 2³ = 1102044113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102044095 and 1102044104.

It is not an unprimeable number, because it can be changed into a prime (1102044101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174126 + ... + 180343.

It is an arithmetic number, because the mean of its divisors is an integer number (275600425).

Almost surely, 2^1102044121 is an apocalyptic number.

It is an amenable number.

1102044121 is a deficient number, since it is larger than the sum of its proper divisors (357579).

1102044121 is an equidigital number, since it uses as much as digits as its factorization.

1102044121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357578.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1102044121 is about 33197.0498839882. The cubic root of 1102044121 is about 1032.9191456823.

Adding to 1102044121 its reverse (1214402011), we get a palindrome (2316446132).

The spelling of 1102044121 in words is "one billion, one hundred two million, forty-four thousand, one hundred twenty-one".