11132212 has 72 divisors (see below), whose sum is σ = 25941384. Its totient is φ = 4128768.

The previous prime is 11132183. The next prime is 11132213. The reversal of 11132212 is 21223111.

It can be written as a sum of positive squares in 4 ways, for example, as 4351396 + 6780816 = 2086^2 + 2604^2 .

It is a super-2 number, since 2×11132212² = 247852288025888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 11132192 and 11132201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11132213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43188 + ... + 43444.

It is an arithmetic number, because the mean of its divisors is an integer number (360297).

Almost surely, 2^11132212 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 11132212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12970692).

11132212 is an abundant number, since it is smaller than the sum of its proper divisors (14809172).

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

11132212 is a wasteful number, since it uses less digits than its factorization.

11132212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 296 counting only the distinct ones).

The product of its digits is 24, while the sum is 13.

The square root of 11132212 is about 3336.4969653815. The cubic root of 11132212 is about 223.2854836723.

Adding to 11132212 its reverse (21223111), we get a palindrome (32355323).

It can be divided in two parts, 111 and 32212, that added together give a palindrome (32323).

The spelling of 11132212 in words is "eleven million, one hundred thirty-two thousand, two hundred twelve".