122240343042221 has 2 divisors, whose sum is σ = 122240343042222. Its totient is φ = 122240343042220.

The previous prime is 122240343042151. The next prime is 122240343042319.

122240343042221 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115333638422500 + 6906704619721 = 10739350^2 + 2628061^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 122240343042221 - 2³⁸ = 121965465135277 is a prime.

It is a super-2 number, since 2×122240343042221² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122240343042421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61120171521110 + 61120171521111.

It is an arithmetic number, because the mean of its divisors is an integer number (61120171521111).

Almost surely, 2^{122240343042221} is an apocalyptic number.

It is an amenable number.

122240343042221 is a deficient number, since it is larger than the sum of its proper divisors (1).

122240343042221 is an equidigital number, since it uses as much as digits as its factorization.

122240343042221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 32.

The spelling of 122240343042221 in words is "one hundred twenty-two trillion, two hundred forty billion, three hundred forty-three million, forty-two thousand, two hundred twenty-one".