1023320222081 has 2 divisors, whose sum is σ = 1023320222082. Its totient is φ = 1023320222080.

The previous prime is 1023320222069. The next prime is 1023320222129. The reversal of 1023320222081 is 1802220233201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 783260400400 + 240059821681 = 885020^2 + 489959^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023320222081 - 2⁶ = 1023320222017 is a prime.

It is a super-2 number, since 2×1023320222081² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1023320222081.

It is not a weakly prime, because it can be changed into another prime (1023320222011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511660111040 + 511660111041.

It is an arithmetic number, because the mean of its divisors is an integer number (511660111041).

Almost surely, 2^{1023320222081} is an apocalyptic number.

It is an amenable number.

1023320222081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023320222081 is an equidigital number, since it uses as much as digits as its factorization.

1023320222081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1023320222081 its reverse (1802220233201), we get a palindrome (2825540455282).

The spelling of 1023320222081 in words is "one trillion, twenty-three billion, three hundred twenty million, two hundred twenty-two thousand, eighty-one".