122081 has 2 divisors, whose sum is σ = 122082. Its totient is φ = 122080.

The previous prime is 122069. The next prime is 122099. The reversal of 122081 is 180221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78400 + 43681 = 280^2 + 209^2 .

It is an emirp because it is prime and its reverse (180221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122081 is a prime.

It is a super-2 number, since 2×122081² = 29807541122, 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 (122011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61040 + 61041.

It is an arithmetic number, because the mean of its divisors is an integer number (61041).

2¹²²⁰⁸¹ is an apocalyptic number.

It is an amenable number.

122081 is a deficient number, since it is larger than the sum of its proper divisors (1).

122081 is an equidigital number, since it uses as much as digits as its factorization.

122081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 122081 is about 349.4009158546. The cubic root of 122081 is about 49.6077305415.

The spelling of 122081 in words is "one hundred twenty-two thousand, eighty-one".