21412222347 has 32 divisors (see below), whose sum is σ = 31752483840. Its totient is φ = 12765772800.

The previous prime is 21412222339. The next prime is 21412222361. The reversal of 21412222347 is 74322221412.

It is not a de Polignac number, because 21412222347 - 2³ = 21412222339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21412222327) 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, 116679 + ... + 237567.

It is an arithmetic number, because the mean of its divisors is an integer number (992265120).

Almost surely, 2^21412222347 is an apocalyptic number.

21412222347 is a deficient number, since it is larger than the sum of its proper divisors (10340261493).

21412222347 is a wasteful number, since it uses less digits than its factorization.

21412222347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121083.

The product of its digits is 10752, while the sum is 30.

Adding to 21412222347 its reverse (74322221412), we get a palindrome (95734443759).

The spelling of 21412222347 in words is "twenty-one billion, four hundred twelve million, two hundred twenty-two thousand, three hundred forty-seven".