2125020205 has 32 divisors (see below), whose sum is σ = 3183867648. Its totient is φ = 1322764800.

The previous prime is 2125020203. The next prime is 2125020221. The reversal of 2125020205 is 5020205212.

It is not a de Polignac number, because 2125020205 - 2¹ = 2125020203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125020203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289359 + ... + 296611.

It is an arithmetic number, because the mean of its divisors is an integer number (99495864).

Almost surely, 2^2125020205 is an apocalyptic number.

It is an amenable number.

2125020205 is a deficient number, since it is larger than the sum of its proper divisors (1058847443).

2125020205 is a wasteful number, since it uses less digits than its factorization.

2125020205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8037.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2125020205 is about 46097.9414399385. The cubic root of 2125020205 is about 1285.6448700413.

Adding to 2125020205 its reverse (5020205212), we get a palindrome (7145225417).

The spelling of 2125020205 in words is "two billion, one hundred twenty-five million, twenty thousand, two hundred five".