104102205121 has 4 divisors (see below), whose sum is σ = 104140354500. Its totient is φ = 104064055744.

The previous prime is 104102205029. The next prime is 104102205133. The reversal of 104102205121 is 121502201401.

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 98370049600 + 5732155521 = 313640^2 + 75711^2 .

It is a cyclic number.

It is not a de Polignac number, because 104102205121 - 2⁷ = 104102204993 is a prime.

It is a super-2 number, since 2×104102205121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104102208121) 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, 19070596 + ... + 19076053.

It is an arithmetic number, because the mean of its divisors is an integer number (26035088625).

Almost surely, 2^104102205121 is an apocalyptic number.

It is an amenable number.

104102205121 is a deficient number, since it is larger than the sum of its proper divisors (38149379).

104102205121 is an equidigital number, since it uses as much as digits as its factorization.

104102205121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38149378.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 104102205121 its reverse (121502201401), we get a palindrome (225604406522).

The spelling of 104102205121 in words is "one hundred four billion, one hundred two million, two hundred five thousand, one hundred twenty-one".