11021220202012 has 24 divisors (see below), whose sum is σ = 20179662836256. Its totient is φ = 5256886924608.

The previous prime is 11021220202001. The next prime is 11021220202033. The reversal of 11021220202012 is 21020202212011.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160549963 + ... + 160618594.

It is an arithmetic number, because the mean of its divisors is an integer number (840819284844).

Almost surely, 2^{11021220202012} is an apocalyptic number.

It is an amenable number.

11021220202012 is a deficient number, since it is larger than the sum of its proper divisors (9158442634244).

11021220202012 is a wasteful number, since it uses less digits than its factorization.

11021220202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321168957 (or 321168955 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11021220202012 its reverse (21020202212011), we get a palindrome (32041422414023).

The spelling of 11021220202012 in words is "eleven trillion, twenty-one billion, two hundred twenty million, two hundred two thousand, twelve".