122255578 has 8 divisors (see below), whose sum is σ = 183470868. Its totient is φ = 61098624.

The previous prime is 122255569. The next prime is 122255587. The reversal of 122255578 is 875552221.

It is an interprime number because it is at equal distance from previous prime (122255569) and next prime (122255587).

It can be written as a sum of positive squares in 2 ways, for example, as 93450889 + 28804689 = 9667^2 + 5367^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×122255578² = 29892852704228168, which contains 22 as substring.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8901 + ... + 17992.

Almost surely, 2^122255578 is an apocalyptic number.

122255578 is a deficient number, since it is larger than the sum of its proper divisors (61215290).

122255578 is a wasteful number, since it uses less digits than its factorization.

122255578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29168.

The product of its digits is 56000, while the sum is 37.

The square root of 122255578 is about 11056.9244367500. The cubic root of 122255578 is about 496.3136592424.

The spelling of 122255578 in words is "one hundred twenty-two million, two hundred fifty-five thousand, five hundred seventy-eight".