22232221221210 has 512 divisors, whose sum is σ = 73219313664000. Its totient is φ = 4170487357440.

The previous prime is 22232221221191. The next prime is 22232221221253. The reversal of 22232221221210 is 1212212223222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 2186269006 + ... + 2186279174.

It is an arithmetic number, because the mean of its divisors is an integer number (143006472000).

Almost surely, 2^{22232221221210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22232221221210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36609656832000).

22232221221210 is an abundant number, since it is smaller than the sum of its proper divisors (50987092442790).

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

22232221221210 is a wasteful number, since it uses less digits than its factorization.

22232221221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11806.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 22232221221210 its reverse (1212212223222), we get a palindrome (23444433444432).

The spelling of 22232221221210 in words is "twenty-two trillion, two hundred thirty-two billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred ten".