22011221020000 has 240 divisors, whose sum is σ = 54538922858112. Its totient is φ = 8741491200000.

The previous prime is 22011221019961. The next prime is 22011221020001. The reversal of 22011221020000 is 2012211022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011221020001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6126138204 + ... + 6126141796.

Almost surely, 2^{22011221020000} is an apocalyptic number.

22011221020000 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 22011221020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27269461429056).

22011221020000 is an abundant number, since it is smaller than the sum of its proper divisors (32527701838112).

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

22011221020000 is a wasteful number, since it uses less digits than its factorization.

22011221020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5731 (or 5708 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22011221020000 its reverse (2012211022), we get a palindrome (22013233231022).

The spelling of 22011221020000 in words is "twenty-two trillion, eleven billion, two hundred twenty-one million, twenty thousand".