22000320100 has 72 divisors (see below), whose sum is σ = 52144037568. Its totient is φ = 7990396800.

The previous prime is 22000320071. The next prime is 22000320127. The reversal of 22000320100 is 102300022.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 926577 + ... + 950023.

It is an arithmetic number, because the mean of its divisors is an integer number (724222744).

Almost surely, 2^22000320100 is an apocalyptic number.

22000320100 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 22000320100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26072018784).

22000320100 is an abundant number, since it is smaller than the sum of its proper divisors (30143717468).

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

22000320100 is a wasteful number, since it uses less digits than its factorization.

22000320100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24325 (or 24318 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 22000320100 its reverse (102300022), we get a palindrome (22102620122).

The spelling of 22000320100 in words is "twenty-two billion, three hundred twenty thousand, one hundred".