22023443100 has 72 divisors (see below), whose sum is σ = 63796260528. Its totient is φ = 5865996800.

The previous prime is 22023443093. The next prime is 22023443137. The reversal of 22023443100 is 134432022.

It is a super-2 number, since 2×22023443100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 214270 + ... + 299930.

It is an arithmetic number, because the mean of its divisors is an integer number (886059174).

Almost surely, 2^22023443100 is an apocalyptic number.

22023443100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22023443100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31898130264).

22023443100 is an abundant number, since it is smaller than the sum of its proper divisors (41772817428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22023443100 is a wasteful number, since it uses less digits than its factorization.

22023443100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86535 (or 86528 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22023443100 its reverse (134432022), we get a palindrome (22157875122).

The spelling of 22023443100 in words is "twenty-two billion, twenty-three million, four hundred forty-three thousand, one hundred".