1122271552 has 28 divisors (see below), whose sum is σ = 2253849696. Its totient is φ = 554372480.

The previous prime is 1122271543. The next prime is 1122271607. The reversal of 1122271552 is 2551722211.

It is a self number, because there is not a number n which added to its sum of digits gives 1122271552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100324 + ... + 110947.

It is an arithmetic number, because the mean of its divisors is an integer number (80494632).

Almost surely, 2^1122271552 is an apocalyptic number.

It is an amenable number.

1122271552 is an abundant number, since it is smaller than the sum of its proper divisors (1131578144).

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

1122271552 is an equidigital number, since it uses as much as digits as its factorization.

1122271552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211366 (or 211356 counting only the distinct ones).

The product of its digits is 2800, while the sum is 28.

The square root of 1122271552 is about 33500.3216700974. The cubic root of 1122271552 is about 1039.2004308004.

Adding to 1122271552 its reverse (2551722211), we get a palindrome (3673993763).

The spelling of 1122271552 in words is "one billion, one hundred twenty-two million, two hundred seventy-one thousand, five hundred fifty-two".