11121022505 has 8 divisors (see below), whose sum is σ = 13353752832. Its totient is φ = 8891134128.

The previous prime is 11121022469. The next prime is 11121022529. The reversal of 11121022505 is 50522012111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11121022505 - 2⁸ = 11121022249 is a prime.

It is a Duffinian number.

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, 701867 + ... + 717536.

It is an arithmetic number, because the mean of its divisors is an integer number (1669219104).

Almost surely, 2^11121022505 is an apocalyptic number.

It is an amenable number.

11121022505 is a deficient number, since it is larger than the sum of its proper divisors (2232730327).

11121022505 is a wasteful number, since it uses less digits than its factorization.

11121022505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420975.

The product of its (nonzero) digits is 200, while the sum is 20.

Adding to 11121022505 its reverse (50522012111), we get a palindrome (61643034616).

The spelling of 11121022505 in words is "eleven billion, one hundred twenty-one million, twenty-two thousand, five hundred five".