1121056572 has 24 divisors (see below), whose sum is σ = 2616414976. Its totient is φ = 373597488.

The previous prime is 1121056553. The next prime is 1121056577. The reversal of 1121056572 is 2756501211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121056577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60783 + ... + 77049.

Almost surely, 2^1121056572 is an apocalyptic number.

1121056572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121056572 is an abundant number, since it is smaller than the sum of its proper divisors (1495358404).

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

1121056572 is a wasteful number, since it uses less digits than its factorization.

1121056572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22017 (or 22015 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 1121056572 is about 33482.1829037475. The cubic root of 1121056572 is about 1038.8252798702.

Adding to 1121056572 its reverse (2756501211), we get a palindrome (3877557783).

The spelling of 1121056572 in words is "one billion, one hundred twenty-one million, fifty-six thousand, five hundred seventy-two".