1121550650 has 48 divisors (see below), whose sum is σ = 2278916640. Its totient is φ = 407265600.

The previous prime is 1121550641. The next prime is 1121550653. The reversal of 1121550650 is 560551211.

It is not an unprimeable number, because it can be changed into a prime (1121550653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 784136 + ... + 785564.

It is an arithmetic number, because the mean of its divisors is an integer number (47477430).

Almost surely, 2^1121550650 is an apocalyptic number.

1121550650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121550650 is an abundant number, since it is smaller than the sum of its proper divisors (1157365990).

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

1121550650 is a wasteful number, since it uses less digits than its factorization.

1121550650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879 (or 2874 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 1121550650 is about 33489.5603136261. The cubic root of 1121550650 is about 1038.9778696519.

The spelling of 1121550650 in words is "one billion, one hundred twenty-one million, five hundred fifty thousand, six hundred fifty".