1022039999 has 2 divisors, whose sum is σ = 1022040000. Its totient is φ = 1022039998.

The previous prime is 1022039989. The next prime is 1022040037. The reversal of 1022039999 is 9999302201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022039999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022039939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511019999 + 511020000.

It is an arithmetic number, because the mean of its divisors is an integer number (511020000).

Almost surely, 2^1022039999 is an apocalyptic number.

1022039999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022039999 is an equidigital number, since it uses as much as digits as its factorization.

1022039999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 1022039999 is about 31969.3603157774. The cubic root of 1022039999 is about 1007.2933441465.

The spelling of 1022039999 in words is "one billion, twenty-two million, thirty-nine thousand, nine hundred ninety-nine".