11212122110212 has 24 divisors (see below), whose sum is σ = 20117774640600. Its totient is φ = 5464431325440.

The previous prime is 11212122110201. The next prime is 11212122110221. The reversal of 11212122110212 is 21201122121211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1701214141636 + 9510907968576 = 1304306^2 + 3083976^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11212122110212.

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, 30419587 + ... + 30785962.

It is an arithmetic number, because the mean of its divisors is an integer number (838240610025).

Almost surely, 2^{11212122110212} is an apocalyptic number.

It is an amenable number.

11212122110212 is a deficient number, since it is larger than the sum of its proper divisors (8905652530388).

11212122110212 is a wasteful number, since it uses less digits than its factorization.

11212122110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61206711 (or 61206709 counting only the distinct ones).

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

Adding to 11212122110212 its reverse (21201122121211), we get a palindrome (32413244231423).

The spelling of 11212122110212 in words is "eleven trillion, two hundred twelve billion, one hundred twenty-two million, one hundred ten thousand, two hundred twelve".