21340422322 has 32 divisors (see below), whose sum is σ = 32800007808. Its totient is φ = 10410508416.

The previous prime is 21340422287. The next prime is 21340422377. The reversal of 21340422322 is 22322404312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10224363 + ... + 10226449.

It is an arithmetic number, because the mean of its divisors is an integer number (1025000244).

Almost surely, 2^21340422322 is an apocalyptic number.

21340422322 is a deficient number, since it is larger than the sum of its proper divisors (11459585486).

21340422322 is a wasteful number, since it uses less digits than its factorization.

21340422322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 21340422322 its reverse (22322404312), we get a palindrome (43662826634).

The spelling of 21340422322 in words is "twenty-one billion, three hundred forty million, four hundred twenty-two thousand, three hundred twenty-two".