122552281 has 2 divisors, whose sum is σ = 122552282. Its totient is φ = 122552280.

The previous prime is 122552267. The next prime is 122552291. The reversal of 122552281 is 182255221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109914256 + 12638025 = 10484^2 + 3555^2 .

It is an emirp because it is prime and its reverse (182255221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122552281 - 2¹⁹ = 122027993 is a prime.

It is a super-2 number, since 2×122552281² = 30038123156605922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122552291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61276140 + 61276141.

It is an arithmetic number, because the mean of its divisors is an integer number (61276141).

Almost surely, 2^122552281 is an apocalyptic number.

It is an amenable number.

122552281 is a deficient number, since it is larger than the sum of its proper divisors (1).

122552281 is an equidigital number, since it uses as much as digits as its factorization.

122552281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3200, while the sum is 28.

The square root of 122552281 is about 11070.3333734807. Note that the first 4 decimals coincide. The cubic root of 122552281 is about 496.7148373520.

The spelling of 122552281 in words is "one hundred twenty-two million, five hundred fifty-two thousand, two hundred eighty-one".