22212200010000 has 1600 divisors, whose sum is σ = 98880767225856. Its totient is φ = 4145126400000.

The previous prime is 22212200009981. The next prime is 22212200010023. The reversal of 22212200010000 is 1000221222.

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 319 ways as a sum of consecutive naturals, for example, 1111100005 + ... + 1111119995.

Almost surely, 2^{22212200010000} is an apocalyptic number.

22212200010000 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 22212200010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49440383612928).

22212200010000 is an abundant number, since it is smaller than the sum of its proper divisors (76668567215856).

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

22212200010000 is a wasteful number, since it uses less digits than its factorization.

22212200010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20090 (or 20069 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22212200010000 its reverse (1000221222), we get a palindrome (22213200231222).

The spelling of 22212200010000 in words is "twenty-two trillion, two hundred twelve billion, two hundred million, ten thousand".