1001222452 has 6 divisors (see below), whose sum is σ = 1752139298. Its totient is φ = 500611224.

The previous prime is 1001222413. The next prime is 1001222459. The reversal of 1001222452 is 2542221001.

It can be written as a sum of positive squares in only one way, i.e., 605848996 + 395373456 = 24614^2 + 19884^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001222459) 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 as a sum of consecutive naturals, namely, 125152803 + ... + 125152810.

Almost surely, 2^1001222452 is an apocalyptic number.

It is an amenable number.

1001222452 is a deficient number, since it is larger than the sum of its proper divisors (750916846).

1001222452 is a wasteful number, since it uses less digits than its factorization.

1001222452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250305617 (or 250305615 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1001222452 is about 31642.0993614520. The cubic root of 1001222452 is about 1000.4073180695.

Adding to 1001222452 its reverse (2542221001), we get a palindrome (3543443453).

The spelling of 1001222452 in words is "one billion, one million, two hundred twenty-two thousand, four hundred fifty-two".