21323312211022 has 32 divisors (see below), whose sum is σ = 33445816717824. Its totient is φ = 10176659354400.

The previous prime is 21323312211011. The next prime is 21323312211029. The reversal of 21323312211022 is 22011221332312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21323312211029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 565331308 + ... + 565369024.

It is an arithmetic number, because the mean of its divisors is an integer number (1045181772432).

Almost surely, 2^{21323312211022} is an apocalyptic number.

21323312211022 is a deficient number, since it is larger than the sum of its proper divisors (12122504506802).

21323312211022 is a wasteful number, since it uses less digits than its factorization.

21323312211022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63264.

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

Adding to 21323312211022 its reverse (22011221332312), we get a palindrome (43334533543334).

The spelling of 21323312211022 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred twelve million, two hundred eleven thousand, twenty-two".