1022344021 has 4 divisors (see below), whose sum is σ = 1022410732. Its totient is φ = 1022277312.

The previous prime is 1022343991. The next prime is 1022344033. The reversal of 1022344021 is 1204432201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 617771025 + 404572996 = 24855^2 + 20114^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022344021 - 2⁷ = 1022343893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022344021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022344051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2431 + ... + 45283.

It is an arithmetic number, because the mean of its divisors is an integer number (255602683).

Almost surely, 2^1022344021 is an apocalyptic number.

It is an amenable number.

1022344021 is a deficient number, since it is larger than the sum of its proper divisors (66711).

1022344021 is an equidigital number, since it uses as much as digits as its factorization.

1022344021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66710.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1022344021 is about 31974.1148587416. The cubic root of 1022344021 is about 1007.3932127026.

Adding to 1022344021 its reverse (1204432201), we get a palindrome (2226776222).

The spelling of 1022344021 in words is "one billion, twenty-two million, three hundred forty-four thousand, twenty-one".