104234321221 has 4 divisors (see below), whose sum is σ = 104235013600. Its totient is φ = 104233628844.

The previous prime is 104234321189. The next prime is 104234321251. The reversal of 104234321221 is 122123432401.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 104234321221 - 2⁵ = 104234321189 is a prime.

It is a super-2 number, since 2×104234321221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104234321251) 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, 14331 + ... + 456808.

It is an arithmetic number, because the mean of its divisors is an integer number (26058753400).

Almost surely, 2^104234321221 is an apocalyptic number.

It is an amenable number.

104234321221 is a deficient number, since it is larger than the sum of its proper divisors (692379).

104234321221 is an equidigital number, since it uses as much as digits as its factorization.

104234321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692378.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 104234321221 its reverse (122123432401), we get a palindrome (226357753622).

The spelling of 104234321221 in words is "one hundred four billion, two hundred thirty-four million, three hundred twenty-one thousand, two hundred twenty-one".