1121565222 has 24 divisors (see below), whose sum is σ = 2459339064. Its totient is φ = 369350304.

The previous prime is 1121565217. The next prime is 1121565223. The reversal of 1121565222 is 2225651211.

1121565222 is a `hidden beast` number, since 1 + 1 + 2 + 1 + 5 + 652 + 2 + 2 = 666.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 373863 + ... + 376850.

It is an arithmetic number, because the mean of its divisors is an integer number (102472461).

Almost surely, 2^1121565222 is an apocalyptic number.

1121565222 is an abundant number, since it is smaller than the sum of its proper divisors (1337773842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121565222 is a wasteful number, since it uses less digits than its factorization.

1121565222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750804 (or 750801 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1121565222 is about 33489.7778732556. Note that the first 3 decimals coincide. The cubic root of 1121565222 is about 1038.9823693506.

The spelling of 1121565222 in words is "one billion, one hundred twenty-one million, five hundred sixty-five thousand, two hundred twenty-two".