104203111221 has 12 divisors (see below), whose sum is σ = 164198842080. Its totient is φ = 63153400680.

The previous prime is 104203111217. The next prime is 104203111237. The reversal of 104203111221 is 122111302401.

104203111221 is a `hidden beast` number, since 10 + 420 + 3 + 1 + 11 + 221 = 666.

It is not a de Polignac number, because 104203111221 - 2² = 104203111217 is a prime.

It is a super-2 number, since 2×104203111221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 104203111194 and 104203111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104203111241) 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 11 ways as a sum of consecutive naturals, for example, 526278241 + ... + 526278438.

It is an arithmetic number, because the mean of its divisors is an integer number (13683236840).

Almost surely, 2^104203111221 is an apocalyptic number.

104203111221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

104203111221 is a deficient number, since it is larger than the sum of its proper divisors (59995730859).

104203111221 is a wasteful number, since it uses less digits than its factorization.

104203111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052556696 (or 1052556693 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 104203111221 its reverse (122111302401), we get a palindrome (226314413622).

The spelling of 104203111221 in words is "one hundred four billion, two hundred three million, one hundred eleven thousand, two hundred twenty-one".