1022254015561 has 2 divisors, whose sum is σ = 1022254015562. Its totient is φ = 1022254015560.

The previous prime is 1022254015547. The next prime is 1022254015609. The reversal of 1022254015561 is 1655104522201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 711693017161 + 310560998400 = 843619^2 + 557280^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022254015561 - 2³³ = 1013664080969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022254015061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511127007780 + 511127007781.

It is an arithmetic number, because the mean of its divisors is an integer number (511127007781).

Almost surely, 2^{1022254015561} is an apocalyptic number.

It is an amenable number.

1022254015561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022254015561 is an equidigital number, since it uses as much as digits as its factorization.

1022254015561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 1022254015561 its reverse (1655104522201), we get a palindrome (2677358537762).

The spelling of 1022254015561 in words is "one trillion, twenty-two billion, two hundred fifty-four million, fifteen thousand, five hundred sixty-one".