11110225521 has 16 divisors (see below), whose sum is σ = 14971392000. Its totient is φ = 7328355408.

The previous prime is 11110225507. The next prime is 11110225531. The reversal of 11110225521 is 12552201111.

It is not a de Polignac number, because 11110225521 - 2⁶ = 11110225457 is a prime.

It is a super-2 number, since 2×11110225521² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11110225531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54880 + ... + 158846.

It is an arithmetic number, because the mean of its divisors is an integer number (935712000).

Almost surely, 2^11110225521 is an apocalyptic number.

It is an amenable number.

11110225521 is a deficient number, since it is larger than the sum of its proper divisors (3861166479).

11110225521 is a wasteful number, since it uses less digits than its factorization.

11110225521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104348.

The product of its (nonzero) digits is 200, while the sum is 21.

Adding to 11110225521 its reverse (12552201111), we get a palindrome (23662426632).

The spelling of 11110225521 in words is "eleven billion, one hundred ten million, two hundred twenty-five thousand, five hundred twenty-one".