122302181 has 2 divisors, whose sum is σ = 122302182. Its totient is φ = 122302180.

The previous prime is 122302171. The next prime is 122302207. The reversal of 122302181 is 181203221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103205281 + 19096900 = 10159^2 + 4370^2 .

It is a cyclic number.

It is not a de Polignac number, because 122302181 - 2¹⁴ = 122285797 is a prime.

It is a super-2 number, since 2×122302181² = 29915646954713522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122302151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61151090 + 61151091.

It is an arithmetic number, because the mean of its divisors is an integer number (61151091).

Almost surely, 2^122302181 is an apocalyptic number.

It is an amenable number.

122302181 is a deficient number, since it is larger than the sum of its proper divisors (1).

122302181 is an equidigital number, since it uses as much as digits as its factorization.

122302181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 122302181 is about 11059.0316483859. The cubic root of 122302181 is about 496.3767150350.

The spelling of 122302181 in words is "one hundred twenty-two million, three hundred two thousand, one hundred eighty-one".