11213224509 has 32 divisors (see below), whose sum is σ = 16132526080. Its totient is φ = 6905025792.

The previous prime is 11213224501. The next prime is 11213224511. The reversal of 11213224509 is 90542231211.

It is not a de Polignac number, because 11213224509 - 2³ = 11213224501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213224501) 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, 1483989 + ... + 1491525.

It is an arithmetic number, because the mean of its divisors is an integer number (504141440).

Almost surely, 2^11213224509 is an apocalyptic number.

11213224509 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11213224509 is a deficient number, since it is larger than the sum of its proper divisors (4919301571).

11213224509 is a wasteful number, since it uses less digits than its factorization.

11213224509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8209.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 11213224509 in words is "eleven billion, two hundred thirteen million, two hundred twenty-four thousand, five hundred nine".