120022181 has 2 divisors, whose sum is σ = 120022182. Its totient is φ = 120022180.

The previous prime is 120022171. The next prime is 120022207. The reversal of 120022181 is 181220021.

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., 89397025 + 30625156 = 9455^2 + 5534^2 .

It is a cyclic number.

It is not a de Polignac number, because 120022181 - 2¹⁴ = 120005797 is a prime.

It is a super-2 number, since 2×120022181² = 28810647863993522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120022141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60011090 + 60011091.

It is an arithmetic number, because the mean of its divisors is an integer number (60011091).

Almost surely, 2^120022181 is an apocalyptic number.

It is an amenable number.

120022181 is a deficient number, since it is larger than the sum of its proper divisors (1).

120022181 is an equidigital number, since it uses as much as digits as its factorization.

120022181 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 17.

The square root of 120022181 is about 10955.4635228273. The cubic root of 120022181 is about 493.2728035771.

The spelling of 120022181 in words is "one hundred twenty million, twenty-two thousand, one hundred eighty-one".