11013212 has 36 divisors (see below), whose sum is σ = 23415504. Its totient is φ = 4439040.

The previous prime is 11013209. The next prime is 11013227. The reversal of 11013212 is 21231011.

It is a junction number, because it is equal to n+sod(n) for n = 11013193 and 11013202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7412 + ... + 8772.

Almost surely, 2^11013212 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 11013212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11707752).

11013212 is an abundant number, since it is smaller than the sum of its proper divisors (12402292).

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

11013212 is a wasteful number, since it uses less digits than its factorization.

11013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 11013212 is about 3318.6159765782. The cubic root of 11013212 is about 222.4870135079.

Adding to 11013212 its reverse (21231011), we get a palindrome (32244223).

The spelling of 11013212 in words is "eleven million, thirteen thousand, two hundred twelve".