11211200012 has 24 divisors (see below), whose sum is σ = 19696575360. Its totient is φ = 5583651840.

The previous prime is 11211200009. The next prime is 11211200027. The reversal of 11211200012 is 21000211211.

It is a junction number, because it is equal to n+sod(n) for n = 11211199966 and 11211200002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1100462 + ... + 1110602.

It is an arithmetic number, because the mean of its divisors is an integer number (820690640).

Almost surely, 2^11211200012 is an apocalyptic number.

It is an amenable number.

11211200012 is a deficient number, since it is larger than the sum of its proper divisors (8485375348).

11211200012 is a wasteful number, since it uses less digits than its factorization.

11211200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11201 (or 11199 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11211200012 its reverse (21000211211), we get a palindrome (32211411223).

The spelling of 11211200012 in words is "eleven billion, two hundred eleven million, two hundred thousand, twelve".