11012001200 has 60 divisors (see below), whose sum is σ = 26489119320. Its totient is φ = 4399342080.

The previous prime is 11012001197. The next prime is 11012001283. The reversal of 11012001200 is 210021011.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314156 + ... + 347444.

It is an arithmetic number, because the mean of its divisors is an integer number (441485322).

Almost surely, 2^11012001200 is an apocalyptic number.

11012001200 is a gapful number since it is divisible by the number (10) 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 11012001200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13244559660).

11012001200 is an abundant number, since it is smaller than the sum of its proper divisors (15477118120).

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

11012001200 is a wasteful number, since it uses less digits than its factorization.

11012001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34134 (or 34123 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 11012001200 its reverse (210021011), we get a palindrome (11222022211).

The spelling of 11012001200 in words is "eleven billion, twelve million, one thousand, two hundred".