1022230021 has 8 divisors (see below), whose sum is σ = 1030570200. Its totient is φ = 1013902848.

The previous prime is 1022230003. The next prime is 1022230037. The reversal of 1022230021 is 1200322201.

It can be written as a sum of positive squares in 4 ways, for example, as 13468900 + 1008761121 = 3670^2 + 31761^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1022230021 - 2⁷ = 1022229893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022229983 and 1022230010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022230091) 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 7 ways as a sum of consecutive naturals, for example, 209805 + ... + 214621.

It is an arithmetic number, because the mean of its divisors is an integer number (128821275).

Almost surely, 2^1022230021 is an apocalyptic number.

It is an amenable number.

1022230021 is a deficient number, since it is larger than the sum of its proper divisors (8340179).

1022230021 is a wasteful number, since it uses less digits than its factorization.

1022230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6503.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1022230021 is about 31972.3321170039. The cubic root of 1022230021 is about 1007.3557670246.

Adding to 1022230021 its reverse (1200322201), we get a palindrome (2222552222).

The spelling of 1022230021 in words is "one billion, twenty-two million, two hundred thirty thousand, twenty-one".