11011211200 has 84 divisors (see below), whose sum is σ = 29557641672. Its totient is φ = 4004070400.

The previous prime is 11011211131. The next prime is 11011211213. The reversal of 11011211200 is 211211011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

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, 295219 + ... + 330418.

Almost surely, 2^11011211200 is an apocalyptic number.

11011211200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011211200 is an abundant number, since it is smaller than the sum of its proper divisors (18546430472).

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

11011211200 is a wasteful number, since it uses less digits than its factorization.

11011211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625670 (or 625655 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11011211200 its reverse (211211011), we get a palindrome (11222422211).

The spelling of 11011211200 in words is "eleven billion, eleven million, two hundred eleven thousand, two hundred".