21223110312322 has 64 divisors (see below), whose sum is σ = 34173501389280. Its totient is φ = 9850130841600.

The previous prime is 21223110312307. The next prime is 21223110312323. The reversal of 21223110312322 is 22321301132212.

It can be written as a sum of positive squares in 16 ways, for example, as 17218424941081 + 4004685371241 = 4149509^2 + 2001171^2 .

It is a super-3 number, since 3×21223110312322³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (21223110312323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1038251622 + ... + 1038272062.

Almost surely, 2^{21223110312322} is an apocalyptic number.

21223110312322 is a deficient number, since it is larger than the sum of its proper divisors (12950391076958).

21223110312322 is a wasteful number, since it uses less digits than its factorization.

21223110312322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21847.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21223110312322 its reverse (22321301132212), we get a palindrome (43544411444534).

The spelling of 21223110312322 in words is "twenty-one trillion, two hundred twenty-three billion, one hundred ten million, three hundred twelve thousand, three hundred twenty-two".