21168229862 has 36 divisors (see below), whose sum is σ = 34805785284. Its totient is φ = 9651180240.

The previous prime is 21168229853. The next prime is 21168229867. The reversal of 21168229862 is 26892286112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21168229867) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2323937 + ... + 2333027.

It is an arithmetic number, because the mean of its divisors is an integer number (966827369).

Almost surely, 2^21168229862 is an apocalyptic number.

21168229862 is a deficient number, since it is larger than the sum of its proper divisors (13637555422).

21168229862 is an equidigital number, since it uses as much as digits as its factorization.

21168229862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9285 (or 9189 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The spelling of 21168229862 in words is "twenty-one billion, one hundred sixty-eight million, two hundred twenty-nine thousand, eight hundred sixty-two".