11200020012 has 60 divisors (see below), whose sum is σ = 29296239280. Its totient is φ = 3731150304.

The previous prime is 11200020011. The next prime is 11200020017. The reversal of 11200020012 is 21002000211.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11200019976 and 11200020003.

It is not an unprimeable number, because it can be changed into a prime (11200020011) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 599598 + ... + 617994.

Almost surely, 2^11200020012 is an apocalyptic number.

11200020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11200020012 is an abundant number, since it is smaller than the sum of its proper divisors (18096219268).

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

11200020012 is a wasteful number, since it uses less digits than its factorization.

11200020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20292 (or 20281 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 11200020012 its reverse (21002000211), we get a palindrome (32202020223).

The spelling of 11200020012 in words is "eleven billion, two hundred million, twenty thousand, twelve".