1022304021 has 4 divisors (see below), whose sum is σ = 1363072032. Its totient is φ = 681536012.

The previous prime is 1022303951. The next prime is 1022304037. The reversal of 1022304021 is 1204032201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1022304021 - 2⁹ = 1022303509 is a prime.

It is a super-2 number, since 2×1022304021² = 2090211022705536882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022304421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170384001 + ... + 170384006.

It is an arithmetic number, because the mean of its divisors is an integer number (340768008).

Almost surely, 2^1022304021 is an apocalyptic number.

It is an amenable number.

1022304021 is a deficient number, since it is larger than the sum of its proper divisors (340768011).

1022304021 is an equidigital number, since it uses as much as digits as its factorization.

1022304021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340768010.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1022304021 is about 31973.4893466447. The cubic root of 1022304021 is about 1007.3800741852.

Adding to 1022304021 its reverse (1204032201), we get a palindrome (2226336222).

The spelling of 1022304021 in words is "one billion, twenty-two million, three hundred four thousand, twenty-one".