11212220102212 has 6 divisors (see below), whose sum is σ = 19621385178878. Its totient is φ = 5606110051104.

The previous prime is 11212220102183. The next prime is 11212220102231. The reversal of 11212220102212 is 21220102221211.

It can be written as a sum of positive squares in only one way, i.e., 8902203126336 + 2310016975876 = 2983656^2 + 1519874^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11212220102212.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1401527512773 + ... + 1401527512780.

Almost surely, 2^{11212220102212} is an apocalyptic number.

It is an amenable number.

11212220102212 is a deficient number, since it is larger than the sum of its proper divisors (8409165076666).

11212220102212 is a wasteful number, since it uses less digits than its factorization.

11212220102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803055025557 (or 2803055025555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11212220102212 its reverse (21220102221211), we get a palindrome (32432322323423).

The spelling of 11212220102212 in words is "eleven trillion, two hundred twelve billion, two hundred twenty million, one hundred two thousand, two hundred twelve".