11321212 has 24 divisors (see below), whose sum is σ = 23171456. Its totient is φ = 4738608.

The previous prime is 11321203. The next prime is 11321243. The reversal of 11321212 is 21212311.

It is a super-2 number, since 2×11321212² = 256339682297888, which contains 22 as substring.

11321212 is a modest number, since divided by 1212 gives 1132 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 11321192 and 11321201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3498 + ... + 5905.

Almost surely, 2^11321212 is an apocalyptic number.

It is an amenable number.

11321212 is an abundant number, since it is smaller than the sum of its proper divisors (11850244).

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

11321212 is a wasteful number, since it uses less digits than its factorization.

11321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9457 (or 9455 counting only the distinct ones).

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

The square root of 11321212 is about 3364.7008782357. The cubic root of 11321212 is about 224.5420281333.

Adding to 11321212 its reverse (21212311), we get a palindrome (32533523).

The spelling of 11321212 in words is "eleven million, three hundred twenty-one thousand, two hundred twelve".