12104220020 has 24 divisors (see below), whose sum is σ = 25420936968. Its totient is φ = 4841292800.

The previous prime is 12104220017. The next prime is 12104220049. The reversal of 12104220020 is 2002240121.

It can be written as a sum of positive squares in 4 ways, for example, as 1753599376 + 10350620644 = 41876^2 + 101738^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12104219977 and 12104220004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436160 + ... + 463080.

It is an arithmetic number, because the mean of its divisors is an integer number (1059205707).

Almost surely, 2^12104220020 is an apocalyptic number.

12104220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12104220020 is an abundant number, since it is smaller than the sum of its proper divisors (13316716948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12104220020 is a wasteful number, since it uses less digits than its factorization.

12104220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49411 (or 49409 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12104220020 its reverse (2002240121), we get a palindrome (14106460141).

The spelling of 12104220020 in words is "twelve billion, one hundred four million, two hundred twenty thousand, twenty".