122188655 has 8 divisors (see below), whose sum is σ = 146686032. Its totient is φ = 97711168.

The previous prime is 122188597. The next prime is 122188663. The reversal of 122188655 is 556881221.

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

It is a cyclic number.

It is not a de Polignac number, because 122188655 - 2¹⁶ = 122123119 is a prime.

It is a super-3 number, since 3×122188655³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19544 + ... + 25026.

It is an arithmetic number, because the mean of its divisors is an integer number (18335754).

Almost surely, 2^122188655 is an apocalyptic number.

122188655 is a deficient number, since it is larger than the sum of its proper divisors (24497377).

122188655 is an equidigital number, since it uses as much as digits as its factorization.

122188655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9945.

The product of its digits is 38400, while the sum is 38.

The square root of 122188655 is about 11053.8977288556. The cubic root of 122188655 is about 496.2230816125.

The spelling of 122188655 in words is "one hundred twenty-two million, one hundred eighty-eight thousand, six hundred fifty-five".