11021212 has 6 divisors (see below), whose sum is σ = 19287128. Its totient is φ = 5510604.

The previous prime is 11021183. The next prime is 11021249. The reversal of 11021212 is 21212011.

It is a super-2 number, since 2×11021212² = 242934227897888, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 1377648 + ... + 1377655.

Almost surely, 2^11021212 is an apocalyptic number.

It is an amenable number.

11021212 is a deficient number, since it is larger than the sum of its proper divisors (8265916).

11021212 is a wasteful number, since it uses less digits than its factorization.

11021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755307 (or 2755305 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 11021212 is about 3319.8210795162. The cubic root of 11021212 is about 222.5408720102.

Adding to 11021212 its reverse (21212011), we get a palindrome (32233223).

It can be divided in two parts, 110212 and 12, that added together give a square (110224 = 332²).

The spelling of 11021212 in words is "eleven million, twenty-one thousand, two hundred twelve".