1078222360021 has 2 divisors, whose sum is σ = 1078222360022. Its totient is φ = 1078222360020.

The previous prime is 1078222359983. The next prime is 1078222360051. The reversal of 1078222360021 is 1200632228701.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1014625085796 + 63597274225 = 1007286^2 + 252185^2 .

It is a cyclic number.

It is not a de Polignac number, because 1078222360021 - 2²⁹ = 1077685489109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1078222360051) 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, 539111180010 + 539111180011.

It is an arithmetic number, because the mean of its divisors is an integer number (539111180011).

Almost surely, 2^{1078222360021} is an apocalyptic number.

It is an amenable number.

1078222360021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078222360021 is an equidigital number, since it uses as much as digits as its factorization.

1078222360021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

Adding to 1078222360021 its reverse (1200632228701), we get a palindrome (2278854588722).

The spelling of 1078222360021 in words is "one trillion, seventy-eight billion, two hundred twenty-two million, three hundred sixty thousand, twenty-one".