22100021323 has 4 divisors (see below), whose sum is σ = 23263180360. Its totient is φ = 20936862288.

The previous prime is 22100021257. The next prime is 22100021353. The reversal of 22100021323 is 32312000122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22100021323 - 2¹⁷ = 22099890251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22100021297 and 22100021306.

It is not an unprimeable number, because it can be changed into a prime (22100021353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581579490 + ... + 581579527.

It is an arithmetic number, because the mean of its divisors is an integer number (5815795090).

Almost surely, 2^22100021323 is an apocalyptic number.

22100021323 is a deficient number, since it is larger than the sum of its proper divisors (1163159037).

22100021323 is a wasteful number, since it uses less digits than its factorization.

22100021323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163159036.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22100021323 its reverse (32312000122), we get a palindrome (54412021445).

The spelling of 22100021323 in words is "twenty-two billion, one hundred million, twenty-one thousand, three hundred twenty-three".