1022021313 has 8 divisors (see below), whose sum is σ = 1388406528. Its totient is φ = 668491824.

The previous prime is 1022021293. The next prime is 1022021321. The reversal of 1022021313 is 3131202201.

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

It is not a de Polignac number, because 1022021313 - 2¹⁶ = 1021955777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022021292 and 1022021301.

It is not an unprimeable number, because it can be changed into a prime (1022021513) 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, 3213745 + ... + 3214062.

It is an arithmetic number, because the mean of its divisors is an integer number (173550816).

Almost surely, 2^1022021313 is an apocalyptic number.

It is an amenable number.

1022021313 is a deficient number, since it is larger than the sum of its proper divisors (366385215).

1022021313 is an equidigital number, since it uses as much as digits as its factorization.

1022021313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6427863.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1022021313 is about 31969.0680658664. The cubic root of 1022021313 is about 1007.2872053137.

Adding to 1022021313 its reverse (3131202201), we get a palindrome (4153223514).

The spelling of 1022021313 in words is "one billion, twenty-two million, twenty-one thousand, three hundred thirteen".