2122131304 has 8 divisors (see below), whose sum is σ = 3978996210. Its totient is φ = 1061065648.

The previous prime is 2122131287. The next prime is 2122131311. The reversal of 2122131304 is 4031312212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2009728900 + 112402404 = 44830^2 + 10602^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 132633199 + ... + 132633214.

Almost surely, 2^2122131304 is an apocalyptic number.

It is an amenable number.

2122131304 is a deficient number, since it is larger than the sum of its proper divisors (1856864906).

2122131304 is a wasteful number, since it uses less digits than its factorization.

2122131304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265266419 (or 265266415 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2122131304 is about 46066.5964012971. The cubic root of 2122131304 is about 1285.0620073335.

Adding to 2122131304 its reverse (4031312212), we get a palindrome (6153443516).

It can be divided in two parts, 21221 and 31304, that added together give a palindrome (52525).

The spelling of 2122131304 in words is "two billion, one hundred twenty-two million, one hundred thirty-one thousand, three hundred four".