11155430022 has 128 divisors (see below), whose sum is σ = 26323315200. Its totient is φ = 3113932800.

The previous prime is 11155430017. The next prime is 11155430051. The reversal of 11155430022 is 22003455111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11155429974 and 11155430001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26623729 + ... + 26624147.

It is an arithmetic number, because the mean of its divisors is an integer number (205650900).

Almost surely, 2^11155430022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11155430022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13161657600).

11155430022 is an abundant number, since it is smaller than the sum of its proper divisors (15167885178).

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

11155430022 is a wasteful number, since it uses less digits than its factorization.

11155430022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 11155430022 its reverse (22003455111), we get a palindrome (33158885133).

The spelling of 11155430022 in words is "eleven billion, one hundred fifty-five million, four hundred thirty thousand, twenty-two".