11022221222012 has 144 divisors (see below), whose sum is σ = 27629542019520. Its totient is φ = 3730856785920.

The previous prime is 11022221222011. The next prime is 11022221222039. The reversal of 11022221222012 is 21022212222011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022221222011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6611687 + ... + 8109182.

It is an arithmetic number, because the mean of its divisors is an integer number (191871819580).

Almost surely, 2^{11022221222012} is an apocalyptic number.

It is an amenable number.

11022221222012 is an abundant number, since it is smaller than the sum of its proper divisors (16607320797508).

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

11022221222012 is a wasteful number, since it uses less digits than its factorization.

11022221222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14720932 (or 14720919 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11022221222012 its reverse (21022212222011), we get a palindrome (32044433444023).

Subtracting 11022221222012 from its reverse (21022212222011), we obtain a palindrome (9999990999999).

The spelling of 11022221222012 in words is "eleven trillion, twenty-two billion, two hundred twenty-one million, two hundred twenty-two thousand, twelve".