11227155 has 16 divisors (see below), whose sum is σ = 18024864. Its totient is φ = 5967360.

The previous prime is 11227133. The next prime is 11227163. The reversal of 11227155 is 55172211.

It is not a de Polignac number, because 11227155 - 2⁶ = 11227091 is a prime.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3945 + ... + 6165.

It is an arithmetic number, because the mean of its divisors is an integer number (1126554).

Almost surely, 2^11227155 is an apocalyptic number.

11227155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11227155 is a deficient number, since it is larger than the sum of its proper divisors (6797709).

11227155 is a wasteful number, since it uses less digits than its factorization.

11227155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566.

The product of its digits is 700, while the sum is 24.

The square root of 11227155 is about 3350.6947040875. The cubic root of 11227155 is about 223.9184638937.

Adding to 11227155 its reverse (55172211), we get a palindrome (66399366).

The spelling of 11227155 in words is "eleven million, two hundred twenty-seven thousand, one hundred fifty-five".