1213122124 has 12 divisors (see below), whose sum is σ = 2125530400. Its totient is φ = 605827728.

The previous prime is 1213122077. The next prime is 1213122133. The reversal of 1213122124 is 4212213121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179604 + ... + 186235.

Almost surely, 2^1213122124 is an apocalyptic number.

It is an amenable number.

1213122124 is a deficient number, since it is larger than the sum of its proper divisors (912408276).

1213122124 is a wasteful number, since it uses less digits than its factorization.

1213122124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366672 (or 366670 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 1213122124 is about 34829.9027273979. The cubic root of 1213122124 is about 1066.5179626469.

Adding to 1213122124 its reverse (4212213121), we get a palindrome (5425335245).

The spelling of 1213122124 in words is "one billion, two hundred thirteen million, one hundred twenty-two thousand, one hundred twenty-four".