22001211300 has 144 divisors (see below), whose sum is σ = 67491930240. Its totient is φ = 5514455040.

The previous prime is 22001211289. The next prime is 22001211319. The reversal of 22001211300 is 311210022.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 4470241 + ... + 4475159.

It is an arithmetic number, because the mean of its divisors is an integer number (468693960).

Almost surely, 2^22001211300 is an apocalyptic number.

22001211300 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 22001211300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33745965120).

22001211300 is an abundant number, since it is smaller than the sum of its proper divisors (45490718940).

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

22001211300 is a wasteful number, since it uses less digits than its factorization.

22001211300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5830 (or 5823 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 22001211300 its reverse (311210022), we get a palindrome (22312421322).

The spelling of 22001211300 in words is "twenty-two billion, one million, two hundred eleven thousand, three hundred".