11021022121012 has 12 divisors (see below), whose sum is σ = 19650690385956. Its totient is φ = 5406539153600.

The previous prime is 11021022121009. The next prime is 11021022121013. The reversal of 11021022121012 is 21012122012011.

It can be written as a sum of positive squares in 2 ways, for example, as 8935759047076 + 2085263073936 = 2989274^2 + 1444044^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021022121013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25992976489 + ... + 25992976912.

It is an arithmetic number, because the mean of its divisors is an integer number (1637557532163).

Almost surely, 2^{11021022121012} is an apocalyptic number.

It is an amenable number.

11021022121012 is a deficient number, since it is larger than the sum of its proper divisors (8629668264944).

11021022121012 is a wasteful number, since it uses less digits than its factorization.

11021022121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51985953458 (or 51985953456 counting only the distinct ones).

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

Adding to 11021022121012 its reverse (21012122012011), we get a palindrome (32033144133023).

The spelling of 11021022121012 in words is "eleven trillion, twenty-one billion, twenty-two million, one hundred twenty-one thousand, twelve".