122254681 has 2 divisors, whose sum is σ = 122254682. Its totient is φ = 122254680.

The previous prime is 122254679. The next prime is 122254711. The reversal of 122254681 is 186452221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105575625 + 16679056 = 10275^2 + 4084^2 .

It is an emirp because it is prime and its reverse (186452221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122254681 - 2¹ = 122254679 is a prime.

It is a super-2 number, since 2×122254681² = 29892414052823522, which contains 22 as substring.

Together with 122254679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (122254651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61127340 + 61127341.

It is an arithmetic number, because the mean of its divisors is an integer number (61127341).

Almost surely, 2^122254681 is an apocalyptic number.

It is an amenable number.

122254681 is a deficient number, since it is larger than the sum of its proper divisors (1).

122254681 is an equidigital number, since it uses as much as digits as its factorization.

122254681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 31.

The square root of 122254681 is about 11056.8838738589. The cubic root of 122254681 is about 496.3124454070.

The spelling of 122254681 in words is "one hundred twenty-two million, two hundred fifty-four thousand, six hundred eighty-one".