122271558 has 8 divisors (see below), whose sum is σ = 244543128. Its totient is φ = 40757184.

The previous prime is 122271557. The next prime is 122271559. The reversal of 122271558 is 855172221.

It is an interprime number because it is at equal distance from previous prime (122271557) and next prime (122271559).

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

122271558 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122271551) 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, 10189291 + ... + 10189302.

It is an arithmetic number, because the mean of its divisors is an integer number (30567891).

Almost surely, 2^122271558 is an apocalyptic number.

122271558 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122271558 is a wasteful number, since it uses less digits than its factorization.

122271558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20378598.

The product of its digits is 11200, while the sum is 33.

The square root of 122271558 is about 11057.6470372317. The cubic root of 122271558 is about 496.3352826504.

The spelling of 122271558 in words is "one hundred twenty-two million, two hundred seventy-one thousand, five hundred fifty-eight".