122206541 has 2 divisors, whose sum is σ = 122206542. Its totient is φ = 122206540.

The previous prime is 122206531. The next prime is 122206543. The reversal of 122206541 is 145602221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122190916 + 15625 = 11054^2 + 125^2 .

It is a cyclic number.

It is not a de Polignac number, because 122206541 - 2¹⁸ = 121944397 is a prime.

Together with 122206543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122206543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61103270 + 61103271.

It is an arithmetic number, because the mean of its divisors is an integer number (61103271).

Almost surely, 2^122206541 is an apocalyptic number.

It is an amenable number.

122206541 is a deficient number, since it is larger than the sum of its proper divisors (1).

122206541 is an equidigital number, since it uses as much as digits as its factorization.

122206541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 122206541 is about 11054.7067351423. The cubic root of 122206541 is about 496.2472928429.

Adding to 122206541 its reverse (145602221), we get a palindrome (267808762).

The spelling of 122206541 in words is "one hundred twenty-two million, two hundred six thousand, five hundred forty-one".