1022343021 has 12 divisors (see below), whose sum is σ = 1687677472. Its totient is φ = 584195976.

The previous prime is 1022343019. The next prime is 1022343037. The reversal of 1022343021 is 1203432201.

1022343021 is a `hidden beast` number, since 10 + 223 + 430 + 2 + 1 = 666.

It is not a de Polignac number, because 1022343021 - 2¹ = 1022343019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022342985 and 1022343003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022343001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8113771 + ... + 8113896.

Almost surely, 2^1022343021 is an apocalyptic number.

It is an amenable number.

1022343021 is a deficient number, since it is larger than the sum of its proper divisors (665334451).

1022343021 is a wasteful number, since it uses less digits than its factorization.

1022343021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16227680 (or 16227677 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1022343021 is about 31974.0992210883. The cubic root of 1022343021 is about 1007.3928842438.

Adding to 1022343021 its reverse (1203432201), we get a palindrome (2225775222).

The spelling of 1022343021 in words is "one billion, twenty-two million, three hundred forty-three thousand, twenty-one".