11020121211012 has 12 divisors (see below), whose sum is σ = 25713616159056. Its totient is φ = 3673373737000.

The previous prime is 11020121210999. The next prime is 11020121211079. The reversal of 11020121211012 is 21011212102011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 11020121210982 and 11020121211000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459171717114 + ... + 459171717137.

It is an arithmetic number, because the mean of its divisors is an integer number (2142801346588).

Almost surely, 2^{11020121211012} is an apocalyptic number.

11020121211012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11020121211012 is an abundant number, since it is smaller than the sum of its proper divisors (14693494948044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11020121211012 is a wasteful number, since it uses less digits than its factorization.

11020121211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918343434258 (or 918343434256 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11020121211012 its reverse (21011212102011), we get a palindrome (32031333313023).

The spelling of 11020121211012 in words is "eleven trillion, twenty billion, one hundred twenty-one million, two hundred eleven thousand, twelve".