1121162722 has 32 divisors (see below), whose sum is σ = 1763078400. Its totient is φ = 534283008.

The previous prime is 1121162719. The next prime is 1121162723. The reversal of 1121162722 is 2272611211.

It is not an unprimeable number, because it can be changed into a prime (1121162723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625804 + ... + 627592.

It is an arithmetic number, because the mean of its divisors is an integer number (55096200).

Almost surely, 2^1121162722 is an apocalyptic number.

1121162722 is a deficient number, since it is larger than the sum of its proper divisors (641915678).

1121162722 is a wasteful number, since it uses less digits than its factorization.

1121162722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010.

The product of its digits is 672, while the sum is 25.

The square root of 1121162722 is about 33483.7680376627. The cubic root of 1121162722 is about 1038.8580667446.

Adding to 1121162722 its reverse (2272611211), we get a palindrome (3393773933).

Subtracting 1121162722 from its reverse (2272611211), we obtain a square (1151448489 = 33933²).

The spelling of 1121162722 in words is "one billion, one hundred twenty-one million, one hundred sixty-two thousand, seven hundred twenty-two".