1221482174 has 12 divisors (see below), whose sum is σ = 2013931752. Its totient is φ = 555219060.

The previous prime is 1221482167. The next prime is 1221482189. The reversal of 1221482174 is 4712841221.

It is a super-3 number, since 3×1221482174³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1221482174.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2523482 + ... + 2523965.

It is an arithmetic number, because the mean of its divisors is an integer number (167827646).

Almost surely, 2^1221482174 is an apocalyptic number.

1221482174 is a deficient number, since it is larger than the sum of its proper divisors (792449578).

1221482174 is a wasteful number, since it uses less digits than its factorization.

1221482174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5047471 (or 5047460 counting only the distinct ones).

The product of its digits is 7168, while the sum is 32.

The square root of 1221482174 is about 34949.7092119520. The cubic root of 1221482174 is about 1068.9622727865.

The spelling of 1221482174 in words is "one billion, two hundred twenty-one million, four hundred eighty-two thousand, one hundred seventy-four".