11221120211012 has 6 divisors (see below), whose sum is σ = 19636960369278. Its totient is φ = 5610560105504.

The previous prime is 11221120211003. The next prime is 11221120211261. The reversal of 11221120211012 is 21011202112211.

It can be written as a sum of positive squares in only one way, i.e., 6106710822976 + 5114409388036 = 2471176^2 + 2261506^2 .

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, 1402640026373 + ... + 1402640026380.

It is an arithmetic number, because the mean of its divisors is an integer number (3272826728213).

Almost surely, 2^{11221120211012} is an apocalyptic number.

It is an amenable number.

11221120211012 is a deficient number, since it is larger than the sum of its proper divisors (8415840158266).

11221120211012 is a wasteful number, since it uses less digits than its factorization.

11221120211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805280052757 (or 2805280052755 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11221120211012 its reverse (21011202112211), we get a palindrome (32232322323223).

The spelling of 11221120211012 in words is "eleven trillion, two hundred twenty-one billion, one hundred twenty million, two hundred eleven thousand, twelve".