3128221126 has 8 divisors (see below), whose sum is σ = 4854136320. Its totient is φ = 1510175688.

The previous prime is 3128221091. The next prime is 3128221127. The reversal of 3128221126 is 6211228213.

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

It is a junction number, because it is equal to n+sod(n) for n = 3128221094 and 3128221103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128221127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26967366 + ... + 26967481.

It is an arithmetic number, because the mean of its divisors is an integer number (606767040).

Almost surely, 2^3128221126 is an apocalyptic number.

3128221126 is a deficient number, since it is larger than the sum of its proper divisors (1725915194).

3128221126 is a wasteful number, since it uses less digits than its factorization.

3128221126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53934878.

The product of its digits is 2304, while the sum is 28.

The square root of 3128221126 is about 55930.5026439062. The cubic root of 3128221126 is about 1462.5110235222.

Adding to 3128221126 its reverse (6211228213), we get a palindrome (9339449339).

The spelling of 3128221126 in words is "three billion, one hundred twenty-eight million, two hundred twenty-one thousand, one hundred twenty-six".