11200221234 has 24 divisors (see below), whose sum is σ = 24923016300. Its totient is φ = 3632503968.

The previous prime is 11200221217. The next prime is 11200221239. The reversal of 11200221234 is 43212200211.

It is a happy number.

11200221234 is a `hidden beast` number, since 11 + 200 + 221 + 234 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11183697009 + 16524225 = 105753^2 + 4065^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11200221239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8407909 + ... + 8409240.

Almost surely, 2^11200221234 is an apocalyptic number.

11200221234 is an abundant number, since it is smaller than the sum of its proper divisors (13722795066).

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

11200221234 is a wasteful number, since it uses less digits than its factorization.

11200221234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16817194 (or 16817191 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11200221234 its reverse (43212200211), we get a palindrome (54412421445).

The spelling of 11200221234 in words is "eleven billion, two hundred million, two hundred twenty-one thousand, two hundred thirty-four".