122281172 has 24 divisors (see below), whose sum is σ = 230998152. Its totient is φ = 56304000.

The previous prime is 122281163. The next prime is 122281183. The reversal of 122281172 is 271182221.

It can be written as a sum of positive squares in 4 ways, for example, as 9156676 + 113124496 = 3026^2 + 10636^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 21422 + ... + 26522.

It is an arithmetic number, because the mean of its divisors is an integer number (9624923).

Almost surely, 2^122281172 is an apocalyptic number.

It is an amenable number.

122281172 is a deficient number, since it is larger than the sum of its proper divisors (108716980).

122281172 is a wasteful number, since it uses less digits than its factorization.

122281172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5579 (or 5577 counting only the distinct ones).

The product of its digits is 896, while the sum is 26.

The square root of 122281172 is about 11058.0817504665. The cubic root of 122281172 is about 496.3482909696.

The spelling of 122281172 in words is "one hundred twenty-two million, two hundred eighty-one thousand, one hundred seventy-two".