11220111122212 has 6 divisors (see below), whose sum is σ = 19635194463878. Its totient is φ = 5610055561104.

The previous prime is 11220111122197. The next prime is 11220111122219. The reversal of 11220111122212 is 21222111102211.

It is a happy number.

11220111122212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11110328902656 + 109782219556 = 3333216^2 + 331334^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11220111122212.

It is not an unprimeable number, because it can be changed into a prime (11220111122219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402513890273 + ... + 1402513890280.

Almost surely, 2^{11220111122212} is an apocalyptic number.

It is an amenable number.

11220111122212 is a deficient number, since it is larger than the sum of its proper divisors (8415083341666).

11220111122212 is a wasteful number, since it uses less digits than its factorization.

11220111122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805027780557 (or 2805027780555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11220111122212 its reverse (21222111102211), we get a palindrome (32442222224423).

The spelling of 11220111122212 in words is "eleven trillion, two hundred twenty billion, one hundred eleven million, one hundred twenty-two thousand, two hundred twelve".