11202001228 has 24 divisors (see below), whose sum is σ = 22511200320. Its totient is φ = 4823827920.

The previous prime is 11202001219. The next prime is 11202001229. The reversal of 11202001228 is 82210020211.

It is a super-2 number, since 2×11202001228² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (11202001229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6698926 + ... + 6700597.

It is an arithmetic number, because the mean of its divisors is an integer number (937966680).

Almost surely, 2^11202001228 is an apocalyptic number.

It is an amenable number.

11202001228 is an abundant number, since it is smaller than the sum of its proper divisors (11309199092).

11202001228 is a wasteful number, since it uses less digits than its factorization.

11202001228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13399557 (or 13399555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11202001228 its reverse (82210020211), we get a palindrome (93412021439).

The spelling of 11202001228 in words is "eleven billion, two hundred two million, one thousand, two hundred twenty-eight".