21400302322 has 16 divisors (see below), whose sum is σ = 36688170240. Its totient is φ = 9171073728.

The previous prime is 21400302289. The next prime is 21400302361. The reversal of 21400302322 is 22320300412.

It is a self number, because there is not a number n which added to its sum of digits gives 21400302322.

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, 399258 + ... + 449674.

It is an arithmetic number, because the mean of its divisors is an integer number (2293010640).

Almost surely, 2^21400302322 is an apocalyptic number.

21400302322 is a deficient number, since it is larger than the sum of its proper divisors (15287867918).

21400302322 is a wasteful number, since it uses less digits than its factorization.

21400302322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80745.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21400302322 its reverse (22320300412), we get a palindrome (43720602734).

The spelling of 21400302322 in words is "twenty-one billion, four hundred million, three hundred two thousand, three hundred twenty-two".