10203212 has 24 divisors (see below), whose sum is σ = 18446736. Its totient is φ = 4935168.

The previous prime is 10203211. The next prime is 10203223. The reversal of 10203212 is 21230201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10203193 and 10203202.

It is not an unprimeable number, because it can be changed into a prime (10203211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23348 + ... + 23780.

It is an arithmetic number, because the mean of its divisors is an integer number (768614).

Almost surely, 2^10203212 is an apocalyptic number.

It is an amenable number.

10203212 is a deficient number, since it is larger than the sum of its proper divisors (8243524).

10203212 is a wasteful number, since it uses less digits than its factorization.

10203212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 10203212 is about 3194.2467030585. The cubic root of 10203212 is about 216.8930504290.

Adding to 10203212 its reverse (21230201), we get a palindrome (31433413).

The spelling of 10203212 in words is "ten million, two hundred three thousand, two hundred twelve".