11222135250 has 64 divisors (see below), whose sum is σ = 28287971712. Its totient is φ = 2962920000.

The previous prime is 11222135231. The next prime is 11222135257. The reversal of 11222135250 is 5253122211.

It is a self number, because there is not a number n which added to its sum of digits gives 11222135250.

It is not an unprimeable number, because it can be changed into a prime (11222135257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1677 + ... + 149823.

It is an arithmetic number, because the mean of its divisors is an integer number (441999558).

Almost surely, 2^11222135250 is an apocalyptic number.

11222135250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11222135250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14143985856).

11222135250 is an abundant number, since it is smaller than the sum of its proper divisors (17065836462).

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

11222135250 is a wasteful number, since it uses less digits than its factorization.

11222135250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148268 (or 148258 counting only the distinct ones).

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

Adding to 11222135250 its reverse (5253122211), we get a palindrome (16475257461).

The spelling of 11222135250 in words is "eleven billion, two hundred twenty-two million, one hundred thirty-five thousand, two hundred fifty".