1025222366639 has 2 divisors, whose sum is σ = 1025222366640. Its totient is φ = 1025222366638.

The previous prime is 1025222366633. The next prime is 1025222366669. The reversal of 1025222366639 is 9366632225201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1025222366639 - 2¹² = 1025222362543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1025222366593 and 1025222366602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025222366633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512611183319 + 512611183320.

It is an arithmetic number, because the mean of its divisors is an integer number (512611183320).

Almost surely, 2^{1025222366639} is an apocalyptic number.

1025222366639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025222366639 is an equidigital number, since it uses as much as digits as its factorization.

1025222366639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 47.

The spelling of 1025222366639 in words is "one trillion, twenty-five billion, two hundred twenty-two million, three hundred sixty-six thousand, six hundred thirty-nine".