10012212 has 72 divisors (see below), whose sum is σ = 29405376. Its totient is φ = 2813184.

The previous prime is 10012193. The next prime is 10012213. The reversal of 10012212 is 21221001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10012194 and 10012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16588 + ... + 17180.

It is an arithmetic number, because the mean of its divisors is an integer number (408408).

Almost surely, 2^10012212 is an apocalyptic number.

10012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10012212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14702688).

10012212 is an abundant number, since it is smaller than the sum of its proper divisors (19393164).

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

10012212 is a wasteful number, since it uses less digits than its factorization.

10012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 10012212 is about 3164.2079577676. The cubic root of 10012212 is about 215.5311331825.

Adding to 10012212 its reverse (21221001), we get a palindrome (31233213).

The spelling of 10012212 in words is "ten million, twelve thousand, two hundred twelve".