1021322450 has 48 divisors (see below), whose sum is σ = 1938625920. Its totient is φ = 400200000.

The previous prime is 1021322431. The next prime is 1021322453. The reversal of 1021322450 is 542231201.

It is not an unprimeable number, because it can be changed into a prime (1021322453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1359575 + ... + 1360325.

It is an arithmetic number, because the mean of its divisors is an integer number (40388040).

Almost surely, 2^1021322450 is an apocalyptic number.

1021322450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021322450 is a deficient number, since it is larger than the sum of its proper divisors (917303470).

1021322450 is a wasteful number, since it uses less digits than its factorization.

1021322450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283 (or 1278 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1021322450 is about 31958.1358968260. The cubic root of 1021322450 is about 1007.0575570450.

Adding to 1021322450 its reverse (542231201), we get a palindrome (1563553651).

The spelling of 1021322450 in words is "one billion, twenty-one million, three hundred twenty-two thousand, four hundred fifty".