22000311000 has 192 divisors, whose sum is σ = 76371965280. Its totient is φ = 5708102400.

The previous prime is 22000310999. The next prime is 22000311007. The reversal of 22000311000 is 11300022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000311007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 299967 + ... + 366033.

Almost surely, 2^22000311000 is an apocalyptic number.

22000311000 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 22000311000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38185982640).

22000311000 is an abundant number, since it is smaller than the sum of its proper divisors (54371654280).

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

22000311000 is a wasteful number, since it uses less digits than its factorization.

22000311000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66131 (or 66114 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 22000311000 its reverse (11300022), we get a palindrome (22011611022).

The spelling of 22000311000 in words is "twenty-two billion, three hundred eleven thousand".