2205204120125 has 16 divisors (see below), whose sum is σ = 2768002831152. Its totient is φ = 1753965803200.

The previous prime is 2205204120113. The next prime is 2205204120139. The reversal of 2205204120125 is 5210214025022.

It can be written as a sum of positive squares in 8 ways, for example, as 978475094041 + 1226729026084 = 989179^2 + 1107578^2 .

It is not a de Polignac number, because 2205204120125 - 2²⁴ = 2205187342909 is a prime.

It is a super-2 number, since 2×2205204120125² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2205204120094 and 2205204120103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50965754 + ... + 51009003.

It is an arithmetic number, because the mean of its divisors is an integer number (173000176947).

Almost surely, 2^{2205204120125} is an apocalyptic number.

2205204120125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2205204120125 is a deficient number, since it is larger than the sum of its proper divisors (562798711027).

2205204120125 is a wasteful number, since it uses less digits than its factorization.

2205204120125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101974945 (or 101974935 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 2205204120125 its reverse (5210214025022), we get a palindrome (7415418145147).

The spelling of 2205204120125 in words is "two trillion, two hundred five billion, two hundred four million, one hundred twenty thousand, one hundred twenty-five".