22120212010000 has 200 divisors, whose sum is σ = 57894265154880. Its totient is φ = 8136395328000.

The previous prime is 22120212009997. The next prime is 22120212010027. The reversal of 22120212010000 is 1021202122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 33866511 + ... + 34513489.

Almost surely, 2^{22120212010000} is an apocalyptic number.

22120212010000 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 22120212010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28947132577440).

22120212010000 is an abundant number, since it is smaller than the sum of its proper divisors (35774053144880).

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

22120212010000 is a wasteful number, since it uses less digits than its factorization.

22120212010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647283 (or 647262 counting only the distinct ones).

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

Adding to 22120212010000 its reverse (1021202122), we get a palindrome (22121233212122).

The spelling of 22120212010000 in words is "twenty-two trillion, one hundred twenty billion, two hundred twelve million, ten thousand".