120222111100081 has 2 divisors, whose sum is σ = 120222111100082. Its totient is φ = 120222111100080.

The previous prime is 120222111100051. The next prime is 120222111100121. The reversal of 120222111100081 is 180001111222021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117987041249856 + 2235069850225 = 10862184^2 + 1495015^2 .

It is a cyclic number.

It is not a de Polignac number, because 120222111100081 - 2⁹ = 120222111099569 is a prime.

It is a super-2 number, since 2×120222111100081² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120222111100051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60111055550040 + 60111055550041.

It is an arithmetic number, because the mean of its divisors is an integer number (60111055550041).

Almost surely, 2^{120222111100081} is an apocalyptic number.

It is an amenable number.

120222111100081 is a deficient number, since it is larger than the sum of its proper divisors (1).

120222111100081 is an equidigital number, since it uses as much as digits as its factorization.

120222111100081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 22.

The spelling of 120222111100081 in words is "one hundred twenty trillion, two hundred twenty-two billion, one hundred eleven million, one hundred thousand, eighty-one".