1021023422 has 4 divisors (see below), whose sum is σ = 1531535136. Its totient is φ = 510511710.

The previous prime is 1021023407. The next prime is 1021023427. The reversal of 1021023422 is 2243201201.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1021023422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021023427) 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 as a sum of consecutive naturals, namely, 255255854 + ... + 255255857.

It is an arithmetic number, because the mean of its divisors is an integer number (382883784).

Almost surely, 2^1021023422 is an apocalyptic number.

1021023422 is a deficient number, since it is larger than the sum of its proper divisors (510511714).

1021023422 is an equidigital number, since it uses as much as digits as its factorization.

1021023422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510511713.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1021023422 is about 31953.4571212568. The cubic root of 1021023422 is about 1006.9592636342.

Adding to 1021023422 its reverse (2243201201), we get a palindrome (3264224623).

The spelling of 1021023422 in words is "one billion, twenty-one million, twenty-three thousand, four hundred twenty-two".