12020210 has 32 divisors (see below), whose sum is σ = 22604400. Its totient is φ = 4596480.

The previous prime is 12020209. The next prime is 12020221. The reversal of 12020210 is 1202021.

It can be written as a sum of positive squares in 8 ways, for example, as 4363921 + 7656289 = 2089^2 + 2767^2 .

It is a Curzon 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, 52376 + ... + 52604.

Almost surely, 2^12020210 is an apocalyptic number.

12020210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12020210 is a deficient number, since it is larger than the sum of its proper divisors (10584190).

12020210 is a wasteful number, since it uses less digits than its factorization.

12020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 12020210 is about 3467.0174502013. The cubic root of 12020210 is about 229.0713023964.

Adding to 12020210 its reverse (1202021), we get a palindrome (13222231).

The spelling of 12020210 in words is "twelve million, twenty thousand, two hundred ten".