120022222181 has 2 divisors, whose sum is σ = 120022222182. Its totient is φ = 120022222180.

The previous prime is 120022222163. The next prime is 120022222219. The reversal of 120022222181 is 181222220021.

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., 119373705025 + 648517156 = 345505^2 + 25466^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120022222181 is a prime.

It is a super-2 number, since 2×120022222181² (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 (120022222781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60011111090 + 60011111091.

It is an arithmetic number, because the mean of its divisors is an integer number (60011111091).

Almost surely, 2^120022222181 is an apocalyptic number.

It is an amenable number.

120022222181 is a deficient number, since it is larger than the sum of its proper divisors (1).

120022222181 is an equidigital number, since it uses as much as digits as its factorization.

120022222181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 23.

The spelling of 120022222181 in words is "one hundred twenty billion, twenty-two million, two hundred twenty-two thousand, one hundred eighty-one".