3134121221 has 32 divisors (see below), whose sum is σ = 4011759360. Its totient is φ = 2377267200.

The previous prime is 3134121217. The next prime is 3134121317. The reversal of 3134121221 is 1221214313.

It is not a de Polignac number, because 3134121221 - 2² = 3134121217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3134121193 and 3134121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3134121721) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1947065 + ... + 1948673.

It is an arithmetic number, because the mean of its divisors is an integer number (125367480).

Almost surely, 2^3134121221 is an apocalyptic number.

It is an amenable number.

3134121221 is a deficient number, since it is larger than the sum of its proper divisors (877638139).

3134121221 is a wasteful number, since it uses less digits than its factorization.

3134121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285.

The product of its digits is 288, while the sum is 20.

The square root of 3134121221 is about 55983.2226742977. Note that the first 3 decimals coincide. The cubic root of 3134121221 is about 1463.4299200584.

Adding to 3134121221 its reverse (1221214313), we get a palindrome (4355335534).

The spelling of 3134121221 in words is "three billion, one hundred thirty-four million, one hundred twenty-one thousand, two hundred twenty-one".