12020205 has 16 divisors (see below), whose sum is σ = 19309824. Its totient is φ = 6384960.

The previous prime is 12020161. The next prime is 12020209. The reversal of 12020205 is 50202021.

It is not a de Polignac number, because 12020205 - 2¹⁴ = 12003821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2587 + ... + 5543.

It is an arithmetic number, because the mean of its divisors is an integer number (1206864).

Almost surely, 2^12020205 is an apocalyptic number.

12020205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12020205 is a deficient number, since it is larger than the sum of its proper divisors (7289619).

12020205 is a wasteful number, since it uses less digits than its factorization.

12020205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 12020205 is about 3467.0167291203. The cubic root of 12020205 is about 229.0712706344.

Adding to 12020205 its reverse (50202021), we get a palindrome (62222226).

It can be divided in two parts, 1202020 and 5, that added together give a triangular number (1202025 = T₁₅₅₀).

The spelling of 12020205 in words is "twelve million, twenty thousand, two hundred five".