11225190905 has 8 divisors (see below), whose sum is σ = 13528042632. Its totient is φ = 8941610368.

The previous prime is 11225190901. The next prime is 11225190913. The reversal of 11225190905 is 50909152211.

It can be written as a sum of positive squares in 4 ways, for example, as 336685801 + 10888505104 = 18349^2 + 104348^2 .

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 11225190905 - 2² = 11225190901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11225190901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4816514 + ... + 4818843.

It is an arithmetic number, because the mean of its divisors is an integer number (1691005329).

Almost surely, 2^11225190905 is an apocalyptic number.

It is an amenable number.

11225190905 is a deficient number, since it is larger than the sum of its proper divisors (2302851727).

11225190905 is an equidigital number, since it uses as much as digits as its factorization.

11225190905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9635595.

The product of its (nonzero) digits is 8100, while the sum is 35.

The spelling of 11225190905 in words is "eleven billion, two hundred twenty-five million, one hundred ninety thousand, nine hundred five".