22313021100 has 144 divisors (see below), whose sum is σ = 65322485760. Its totient is φ = 5880211200.

The previous prime is 22313021077. The next prime is 22313021117. The reversal of 22313021100 is 112031322.

It is a super-3 number, since 3×22313021100³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22313021100.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9338706 + ... + 9341094.

Almost surely, 2^22313021100 is an apocalyptic number.

22313021100 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 22313021100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32661242880).

22313021100 is an abundant number, since it is smaller than the sum of its proper divisors (43009464660).

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

22313021100 is a wasteful number, since it uses less digits than its factorization.

22313021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760 (or 2753 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 22313021100 its reverse (112031322), we get a palindrome (22425052422).

The spelling of 22313021100 in words is "twenty-two billion, three hundred thirteen million, twenty-one thousand, one hundred".