22011213300 has 144 divisors (see below), whose sum is σ = 64457457792. Its totient is φ = 5798822400.

The previous prime is 22011213293. The next prime is 22011213313. The reversal of 22011213300 is 331211022.

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 22011213300.

It is a congruent number.

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, 23390830 + ... + 23391770.

Almost surely, 2^22011213300 is an apocalyptic number.

22011213300 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 22011213300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32228728896).

22011213300 is an abundant number, since it is smaller than the sum of its proper divisors (42446244492).

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

22011213300 is a wasteful number, since it uses less digits than its factorization.

22011213300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818 (or 1811 counting only the distinct ones).

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

Adding to 22011213300 its reverse (331211022), we get a palindrome (22342424322).

The spelling of 22011213300 in words is "twenty-two billion, eleven million, two hundred thirteen thousand, three hundred".