120020221101181 has 2 divisors, whose sum is σ = 120020221101182. Its totient is φ = 120020221101180.

The previous prime is 120020221101161. The next prime is 120020221101227. The reversal of 120020221101181 is 181101122020021.

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., 99295046796100 + 20725174305081 = 9964690^2 + 4552491^2 .

It is a cyclic number.

It is not a de Polignac number, because 120020221101181 - 2¹⁵ = 120020221068413 is a prime.

It is a super-2 number, since 2×120020221101181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120020221101101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010110550590 + 60010110550591.

It is an arithmetic number, because the mean of its divisors is an integer number (60010110550591).

Almost surely, 2^{120020221101181} is an apocalyptic number.

It is an amenable number.

120020221101181 is a deficient number, since it is larger than the sum of its proper divisors (1).

120020221101181 is an equidigital number, since it uses as much as digits as its factorization.

120020221101181 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 120020221101181 in words is "one hundred twenty trillion, twenty billion, two hundred twenty-one million, one hundred one thousand, one hundred eighty-one".