1121565226 has 8 divisors (see below), whose sum is σ = 1698071040. Its totient is φ = 555541548.

The previous prime is 1121565223. The next prime is 1121565251. The reversal of 1121565226 is 6225651211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1121565223) 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, 2620266 + ... + 2620693.

It is an arithmetic number, because the mean of its divisors is an integer number (212258880).

Almost surely, 2^1121565226 is an apocalyptic number.

1121565226 is a deficient number, since it is larger than the sum of its proper divisors (576505814).

1121565226 is a wasteful number, since it uses less digits than its factorization.

1121565226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5241068.

The product of its digits is 7200, while the sum is 31.

The square root of 1121565226 is about 33489.7779329753. Note that the first 3 decimals coincide. The cubic root of 1121565226 is about 1038.9823705857.

The spelling of 1121565226 in words is "one billion, one hundred twenty-one million, five hundred sixty-five thousand, two hundred twenty-six".