22131201304 has 8 divisors (see below), whose sum is σ = 41496002460. Its totient is φ = 11065600648.

The previous prime is 22131201263. The next prime is 22131201347. The reversal of 22131201304 is 40310213122.

It is a happy number.

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

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 as a sum of consecutive naturals, namely, 1383200074 + ... + 1383200089.

Almost surely, 2^22131201304 is an apocalyptic number.

It is an amenable number.

22131201304 is a deficient number, since it is larger than the sum of its proper divisors (19364801156).

22131201304 is a wasteful number, since it uses less digits than its factorization.

22131201304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2766400169 (or 2766400165 counting only the distinct ones).

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

Adding to 22131201304 its reverse (40310213122), we get a palindrome (62441414426).

The spelling of 22131201304 in words is "twenty-two billion, one hundred thirty-one million, two hundred one thousand, three hundred four".