1021225353 has 8 divisors (see below), whose sum is σ = 1390604928. Its totient is φ = 666331344.

The previous prime is 1021225351. The next prime is 1021225379. The reversal of 1021225353 is 3535221201.

It is a happy number.

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

It is not a de Polignac number, because 1021225353 - 2¹ = 1021225351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021225351) 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, 3621226 + ... + 3621507.

It is an arithmetic number, because the mean of its divisors is an integer number (173825616).

Almost surely, 2^1021225353 is an apocalyptic number.

It is an amenable number.

1021225353 is a deficient number, since it is larger than the sum of its proper divisors (369379575).

1021225353 is an equidigital number, since it uses as much as digits as its factorization.

1021225353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7242783.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1021225353 is about 31956.6167326893. The cubic root of 1021225353 is about 1007.0256424208.

Adding to 1021225353 its reverse (3535221201), we get a palindrome (4556446554).

The spelling of 1021225353 in words is "one billion, twenty-one million, two hundred twenty-five thousand, three hundred fifty-three".