2103212 has 12 divisors (see below), whose sum is σ = 3840816. Its totient is φ = 1005840.

The previous prime is 2103193. The next prime is 2103229. The reversal of 2103212 is 2123012.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2103193 and 2103202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11339 + ... + 11522.

It is an arithmetic number, because the mean of its divisors is an integer number (320068).

2^2103212 is an apocalyptic number.

It is an amenable number.

2103212 is a deficient number, since it is larger than the sum of its proper divisors (1737604).

2103212 is a wasteful number, since it uses less digits than its factorization.

2103212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22888 (or 22886 counting only the distinct ones).

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

The square root of 2103212 is about 1450.2454964591. The cubic root of 2103212 is about 128.1231724506.

Adding to 2103212 its reverse (2123012), we get a palindrome (4226224).

The spelling of 2103212 in words is "two million, one hundred three thousand, two hundred twelve".