122340021450461 has 2 divisors, whose sum is σ = 122340021450462. Its totient is φ = 122340021450460.

The previous prime is 122340021450377. The next prime is 122340021450509. The reversal of 122340021450461 is 164054120043221.

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., 122339637525625 + 383924836 = 11060725^2 + 19594^2 .

It is a cyclic number.

It is not a de Polignac number, because 122340021450461 - 2²⁶ = 122339954341597 is a prime.

It is a super-2 number, since 2×122340021450461² (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 (122340021450061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61170010725230 + 61170010725231.

It is an arithmetic number, because the mean of its divisors is an integer number (61170010725231).

Almost surely, 2^{122340021450461} is an apocalyptic number.

It is an amenable number.

122340021450461 is a deficient number, since it is larger than the sum of its proper divisors (1).

122340021450461 is an equidigital number, since it uses as much as digits as its factorization.

122340021450461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 122340021450461 its reverse (164054120043221), we get a palindrome (286394141493682).

The spelling of 122340021450461 in words is "one hundred twenty-two trillion, three hundred forty billion, twenty-one million, four hundred fifty thousand, four hundred sixty-one".