120212101181 has 2 divisors, whose sum is σ = 120212101182. Its totient is φ = 120212101180.

The previous prime is 120212101157. The next prime is 120212101291. The reversal of 120212101181 is 181101212021.

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., 90983069956 + 29229031225 = 301634^2 + 170965^2 .

It is a cyclic number.

It is not a de Polignac number, because 120212101181 - 2¹⁸ = 120211839037 is a prime.

It is a super-2 number, since 2×120212101181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120212101081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60106050590 + 60106050591.

It is an arithmetic number, because the mean of its divisors is an integer number (60106050591).

Almost surely, 2^120212101181 is an apocalyptic number.

It is an amenable number.

120212101181 is a deficient number, since it is larger than the sum of its proper divisors (1).

120212101181 is an equidigital number, since it uses as much as digits as its factorization.

120212101181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 20.

The spelling of 120212101181 in words is "one hundred twenty billion, two hundred twelve million, one hundred one thousand, one hundred eighty-one".