120210210181 has 2 divisors, whose sum is σ = 120210210182. Its totient is φ = 120210210180.

The previous prime is 120210210179. The next prime is 120210210193. The reversal of 120210210181 is 181012012021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116083304100 + 4126906081 = 340710^2 + 64241^2 .

It is a cyclic number.

It is not a de Polignac number, because 120210210181 - 2¹ = 120210210179 is a prime.

It is a super-2 number, since 2×120210210181² (a number of 23 digits) contains 22 as substring.

Together with 120210210179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120210210481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60105105090 + 60105105091.

It is an arithmetic number, because the mean of its divisors is an integer number (60105105091).

Almost surely, 2^120210210181 is an apocalyptic number.

It is an amenable number.

120210210181 is a deficient number, since it is larger than the sum of its proper divisors (1).

120210210181 is an equidigital number, since it uses as much as digits as its factorization.

120210210181 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 19.

The spelling of 120210210181 in words is "one hundred twenty billion, two hundred ten million, two hundred ten thousand, one hundred eighty-one".