11221020212 has 24 divisors (see below), whose sum is σ = 20500070976. Its totient is φ = 5364083648.

The previous prime is 11221020203. The next prime is 11221020259. The reversal of 11221020212 is 21202012211.

11221020212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11221020212² (a number of 21 digits) 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179168 + ... + 233544.

It is an arithmetic number, because the mean of its divisors is an integer number (854169624).

Almost surely, 2^11221020212 is an apocalyptic number.

It is an amenable number.

11221020212 is a deficient number, since it is larger than the sum of its proper divisors (9279050764).

11221020212 is a wasteful number, since it uses less digits than its factorization.

11221020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56647 (or 56645 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11221020212 its reverse (21202012211), we get a palindrome (32423032423).

The spelling of 11221020212 in words is "eleven billion, two hundred twenty-one million, twenty thousand, two hundred twelve".