11220012121012 has 6 divisors (see below), whose sum is σ = 19635021211778. Its totient is φ = 5610006060504.

The previous prime is 11220012121007. The next prime is 11220012121091. The reversal of 11220012121012 is 21012121002211.

It can be written as a sum of positive squares in only one way, i.e., 5718200908176 + 5501811212836 = 2391276^2 + 2345594^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402501515123 + ... + 1402501515130.

Almost surely, 2^{11220012121012} is an apocalyptic number.

It is an amenable number.

11220012121012 is a deficient number, since it is larger than the sum of its proper divisors (8415009090766).

11220012121012 is a wasteful number, since it uses less digits than its factorization.

11220012121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805003030257 (or 2805003030255 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11220012121012 its reverse (21012121002211), we get a palindrome (32232133123223).

The spelling of 11220012121012 in words is "eleven trillion, two hundred twenty billion, twelve million, one hundred twenty-one thousand, twelve".