11001220200012 has 96 divisors (see below), whose sum is σ = 30134039875072. Its totient is φ = 3057790196736.

The previous prime is 11001220199999. The next prime is 11001220200029. The reversal of 11001220200012 is 21000202210011.

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 31 ways as a sum of consecutive naturals, for example, 20474463 + ... + 21004905.

Almost surely, 2^{11001220200012} is an apocalyptic number.

11001220200012 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 11001220200012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15067019937536).

11001220200012 is an abundant number, since it is smaller than the sum of its proper divisors (19132819675060).

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

11001220200012 is a wasteful number, since it uses less digits than its factorization.

11001220200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537167 (or 537165 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11001220200012 its reverse (21000202210011), we get a palindrome (32001422410023).

The spelling of 11001220200012 in words is "eleven trillion, one billion, two hundred twenty million, two hundred thousand, twelve".