10103212 has 36 divisors (see below), whose sum is σ = 21657720. Its totient is φ = 4100544.

The previous prime is 10103147. The next prime is 10103221. The reversal of 10103212 is 21230101.

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

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2368 + ... + 5080.

Almost surely, 2^10103212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10103212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10828860).

10103212 is an abundant number, since it is smaller than the sum of its proper divisors (11554508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10103212 is a wasteful number, since it uses less digits than its factorization.

10103212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750 (or 2741 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 10103212 is about 3178.5550176141. Note that the first 3 decimals coincide. The cubic root of 10103212 is about 216.1821451714.

Adding to 10103212 its reverse (21230101), we get a palindrome (31333313).

The spelling of 10103212 in words is "ten million, one hundred three thousand, two hundred twelve".