11221011110212 has 24 divisors (see below), whose sum is σ = 19681663884120. Its totient is φ = 5597685649920.

The previous prime is 11221011110209. The next prime is 11221011110219. The reversal of 11221011110212 is 21201111012211.

It can be written as a sum of positive squares in 4 ways, for example, as 228497384196 + 10992513726016 = 478014^2 + 3315496^2 .

It is a super-2 number, since 2×11221011110212² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11221011110219) by changing a digit.

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, 5471418 + ... + 7237294.

It is an arithmetic number, because the mean of its divisors is an integer number (820069328505).

Almost surely, 2^{11221011110212} is an apocalyptic number.

It is an amenable number.

11221011110212 is a deficient number, since it is larger than the sum of its proper divisors (8460652773908).

11221011110212 is a wasteful number, since it uses less digits than its factorization.

11221011110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769511 (or 1769509 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11221011110212 its reverse (21201111012211), we get a palindrome (32422122122423).

The spelling of 11221011110212 in words is "eleven trillion, two hundred twenty-one billion, eleven million, one hundred ten thousand, two hundred twelve".