11020020111012 has 72 divisors (see below), whose sum is σ = 28271081160000. Its totient is φ = 3338500468160.

The previous prime is 11020020110963. The next prime is 11020020111031. The reversal of 11020020111012 is 21011102002011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4379614 + ... + 6420362.

It is an arithmetic number, because the mean of its divisors is an integer number (392653905000).

Almost surely, 2^{11020020111012} is an apocalyptic number.

11020020111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11020020111012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14135540580000).

11020020111012 is an abundant number, since it is smaller than the sum of its proper divisors (17251061048988).

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

11020020111012 is a wasteful number, since it uses less digits than its factorization.

11020020111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044497 (or 2044484 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11020020111012 its reverse (21011102002011), we get a palindrome (32031122113023).

The spelling of 11020020111012 in words is "eleven trillion, twenty billion, twenty million, one hundred eleven thousand, twelve".