1021313222 has 4 divisors (see below), whose sum is σ = 1531969836. Its totient is φ = 510656610.

The previous prime is 1021313219. The next prime is 1021313273. The reversal of 1021313222 is 2223131201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2223131201 = 13177 ⋅168713.

It is a self number, because there is not a number n which added to its sum of digits gives 1021313222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255328304 + ... + 255328307.

It is an arithmetic number, because the mean of its divisors is an integer number (382992459).

Almost surely, 2^1021313222 is an apocalyptic number.

1021313222 is a deficient number, since it is larger than the sum of its proper divisors (510656614).

1021313222 is an equidigital number, since it uses as much as digits as its factorization.

1021313222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510656613.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1021313222 is about 31957.9915201190. The cubic root of 1021313222 is about 1007.0545239986.

Adding to 1021313222 its reverse (2223131201), we get a palindrome (3244444423).

The spelling of 1021313222 in words is "one billion, twenty-one million, three hundred thirteen thousand, two hundred twenty-two".