120196661081881 has 2 divisors, whose sum is σ = 120196661081882. Its totient is φ = 120196661081880.

The previous prime is 120196661081863. The next prime is 120196661081909. The reversal of 120196661081881 is 188180166691021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109532132377600 + 10664528704281 = 10465760^2 + 3265659^2 .

It is an emirp because it is prime and its reverse (188180166691021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120196661081881 - 2⁷ = 120196661081753 is a prime.

It is a super-2 number, since 2×120196661081881² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120196661081851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60098330540940 + 60098330540941.

It is an arithmetic number, because the mean of its divisors is an integer number (60098330540941).

Almost surely, 2^{120196661081881} is an apocalyptic number.

It is an amenable number.

120196661081881 is a deficient number, since it is larger than the sum of its proper divisors (1).

120196661081881 is an equidigital number, since it uses as much as digits as its factorization.

120196661081881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 58.

The spelling of 120196661081881 in words is "one hundred twenty trillion, one hundred ninety-six billion, six hundred sixty-one million, eighty-one thousand, eight hundred eighty-one".