11227511249 has 4 divisors (see below), whose sum is σ = 11715663936. Its totient is φ = 10739358564.

The previous prime is 11227511233. The next prime is 11227511261. The reversal of 11227511249 is 94211572211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94211572211 = 30839 ⋅3054949.

It is a cyclic number.

It is not a de Polignac number, because 11227511249 - 2⁴ = 11227511233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11227510249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244076309 + ... + 244076354.

It is an arithmetic number, because the mean of its divisors is an integer number (2928915984).

Almost surely, 2^11227511249 is an apocalyptic number.

It is an amenable number.

11227511249 is a deficient number, since it is larger than the sum of its proper divisors (488152687).

11227511249 is an equidigital number, since it uses as much as digits as its factorization.

11227511249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488152686.

The product of its digits is 10080, while the sum is 35.

The spelling of 11227511249 in words is "eleven billion, two hundred twenty-seven million, five hundred eleven thousand, two hundred forty-nine".