1022250405439 has 2 divisors, whose sum is σ = 1022250405440. Its totient is φ = 1022250405438.

The previous prime is 1022250405433. The next prime is 1022250405551. The reversal of 1022250405439 is 9345040522201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022250405439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022250405398 and 1022250405407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022250405433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511125202719 + 511125202720.

It is an arithmetic number, because the mean of its divisors is an integer number (511125202720).

Almost surely, 2^{1022250405439} is an apocalyptic number.

1022250405439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022250405439 is an equidigital number, since it uses as much as digits as its factorization.

1022250405439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 1022250405439 in words is "one trillion, twenty-two billion, two hundred fifty million, four hundred five thousand, four hundred thirty-nine".