1152021322 has 8 divisors (see below), whose sum is σ = 1751703876. Its totient is φ = 568120032.

The previous prime is 1152021313. The next prime is 1152021323. The reversal of 1152021322 is 2231202511.

It can be written as a sum of positive squares in 2 ways, for example, as 1086427521 + 65593801 = 32961^2 + 8099^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1152021322.

It is not an unprimeable number, because it can be changed into a prime (1152021323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3945133 + ... + 3945424.

Almost surely, 2^1152021322 is an apocalyptic number.

1152021322 is a deficient number, since it is larger than the sum of its proper divisors (599682554).

1152021322 is an equidigital number, since it uses as much as digits as its factorization.

1152021322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7890632.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1152021322 is about 33941.4395982256. The cubic root of 1152021322 is about 1048.3030251724.

Adding to 1152021322 its reverse (2231202511), we get a palindrome (3383223833).

The spelling of 1152021322 in words is "one billion, one hundred fifty-two million, twenty-one thousand, three hundred twenty-two".