21838219322 has 16 divisors (see below), whose sum is σ = 33399475200. Its totient is φ = 10705358352.

The previous prime is 21838219313. The next prime is 21838219343. The reversal of 21838219322 is 22391283812.

It is a self number, because there is not a number n which added to its sum of digits gives 21838219322.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74663 + ... + 221925.

It is an arithmetic number, because the mean of its divisors is an integer number (2087467200).

Almost surely, 2^21838219322 is an apocalyptic number.

21838219322 is a deficient number, since it is larger than the sum of its proper divisors (11561255878).

21838219322 is a wasteful number, since it uses less digits than its factorization.

21838219322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148717.

The product of its digits is 82944, while the sum is 41.

The spelling of 21838219322 in words is "twenty-one billion, eight hundred thirty-eight million, two hundred nineteen thousand, three hundred twenty-two".