11121154345250 has 16 divisors (see below), whose sum is σ = 20818800934776. Its totient is φ = 4448461738000.

The previous prime is 11121154345219. The next prime is 11121154345267. The reversal of 11121154345250 is 5254345112111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5530525813849 + 5590628531401 = 2351707^2 + 2364451^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11121154345250.

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, 22242308441 + ... + 22242308940.

Almost surely, 2^{11121154345250} is an apocalyptic number.

11121154345250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11121154345250 is a deficient number, since it is larger than the sum of its proper divisors (9697646589526).

11121154345250 is an equidigital number, since it uses as much as digits as its factorization.

11121154345250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44484617398 (or 44484617388 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 35.

Adding to 11121154345250 its reverse (5254345112111), we get a palindrome (16375499457361).

The spelling of 11121154345250 in words is "eleven trillion, one hundred twenty-one billion, one hundred fifty-four million, three hundred forty-five thousand, two hundred fifty".