122255567 has 4 divisors (see below), whose sum is σ = 139720656. Its totient is φ = 104790480.

The previous prime is 122255533. The next prime is 122255569. The reversal of 122255567 is 765552221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 765552221 = 7 ⋅109364603.

It is a cyclic number.

It is not a de Polignac number, because 122255567 - 2²⁶ = 55146703 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122255569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8732534 + ... + 8732547.

It is an arithmetic number, because the mean of its divisors is an integer number (34930164).

Almost surely, 2^122255567 is an apocalyptic number.

122255567 is a deficient number, since it is larger than the sum of its proper divisors (17465089).

122255567 is an equidigital number, since it uses as much as digits as its factorization.

122255567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17465088.

The product of its digits is 42000, while the sum is 35.

The square root of 122255567 is about 11056.9239393242. The cubic root of 122255567 is about 496.3136443571.

The spelling of 122255567 in words is "one hundred twenty-two million, two hundred fifty-five thousand, five hundred sixty-seven".